%% %% %CopyrightBegin% %% %% Copyright Ericsson AB 2006-2016. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. %% You may obtain a copy of the License at %% %% http://www.apache.org/licenses/LICENSE-2.0 %% %% Unless required by applicable law or agreed to in writing, software %% distributed under the License is distributed on an "AS IS" BASIS, %% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %% See the License for the specific language governing permissions and %% limitations under the License. %% %% %CopyrightEnd% %% %% @doc Interface module for XML Schema validation. %% It handles the W3.org %% specifications %% of XML Schema second edition 28 october 2004. For an introduction to %% XML Schema study part 0. %% An XML structure is validated by xmerl_xsd:validate/[2,3]. %% @type global_state().

The global state of the validator. It is %% representated by the #xsd_state{} record. %%

%% @type option_list().

Options allow to customize the behaviour of the %% validation. %%

%%

%% Possible options are : %%

%%
%%
{tab2file,boolean()}
%%
Enables saving of abstract structure on file for debugging %% purpose.
%%
{xsdbase,filename()}
%%
XSD Base directory.
%%
{fetch_fun,FetchFun}
%%
Call back function to fetch an external resource.
%%
{fetch_path,PathList}
%%
PathList is a list of directories to search when fetching files. %% If the file in question is not in the fetch_path, the URI will %% be used as a file name.
%%
{state,State}
%%
It is possible by this option to provide a state with process %% information from an earlier validation.
%%
%% @type filename() = string() %% @end %%%------------------------------------------------------------------- -module(xmerl_xsd). %%---------------------------------------------------------------------- %% Include files %%---------------------------------------------------------------------- -include("xmerl.hrl"). -include("xmerl_internal.hrl"). -include("xmerl_xsd.hrl"). -include_lib("kernel/include/file.hrl"). %%---------------------------------------------------------------------- %% External exports %%---------------------------------------------------------------------- -export([validate/2,validate/3,process_validate/2,process_validate/3, process_schema/1,process_schema/2, process_schemas/1,process_schemas/2, state2file/1,state2file/2,file2state/1,format_error/1]). %%---------------------------------------------------------------------- %% Internal exports %%---------------------------------------------------------------------- -export([print_table/1]). %%-export([whitespace/1]). %%---------------------------------------------------------------------- %% Imports %%---------------------------------------------------------------------- -import(xmerl_lib,[is_facet/1, is_builtin_simple_type/1, is_xsd_string/1]). -import(xmerl_xsd_type,[facet_fun/2]). -import(lists,[reverse/1,reverse/2,foldl/3,member/2,filter/2,flatten/1,map/2, splitwith/2,mapfoldl/3,keysearch/3,keymember/3, keyreplace/4,keydelete/3]). %%====================================================================== %% Functions %%====================================================================== %% @spec validate(Element,State) -> Result %% @equiv validate(Element,State,[]) validate(Xml,State) -> validate(Xml,State,[]). %% @spec validate(Element,State,Options) -> Result %% Element = XmlElement %% Options = option_list() %% Result = {ValidElement,global_state()} | {error,Reasons} %% ValidElement = XmlElement %% State = global_state() %% Reasons = [ErrorReason] | ErrorReason %% @doc Validates a parsed well-formed XML element (Element). %%

A call to validate/2 or validate/3 must provide a well formed %% parsed XML element #xmlElement{} and a State, %% global_state(), which holds necessary information from %% an already processed schema. %% Thus validate enables reuse of the schema information and %% therefore if one shall validate several times towards the same %% schema it reduces time consumption.

%%

The result, ValidElement, is the valid element that conforms to the %% post-schema-validation infoset. When the validator finds an error it %% tries to continue and reports a list of all errors found. In those cases %% an unexpected error is found it may cause a single error reason. %%

%%

Usage example:

%%

%% 1>{E,_} = xmerl_scan:file("my_XML_document.xml").
%% 2>{ok,S} = xmerl_xsd:process_schema("my_XML_Schema.xsd").
%% 3>{E2,_} = xmerl_xsd:validate(E,S). %%

%%

Observe that E2 may differ from E if for instance there are default %% values defined in my_XML_Schema.xsd.

validate(Xml,State,Opts) when is_record(State,xsd_state) -> S2 = initiate_state2(State,Opts), S3 = validation_options(S2,Opts), validate3(S3#xsd_state.schema_name,Xml,S3). %% @spec state2file(State) -> ok | {error,Reason} %% @doc Same as state2file(State,SchemaName) %% %% The name of the saved file is the same as the name of the %% schema, but with .xss extension. state2file(S=#xsd_state{schema_name=SN}) -> state2file(S,filename:rootname(SN)). %% @spec state2file(State,FileName) -> ok | {error,Reason} %% State = global_state() %% FileName = string() %% @doc Saves the schema state with all information of the processed %% schema in a file. You can provide the file name for the saved %% state. FileName is saved with the .xss extension %% added. state2file(S,FileName) when is_record(S,xsd_state) -> save_xsd_state(S), case catch ets:tab2file(S#xsd_state.table,lists:append(FileName,".xss")) of {'EXIT',Reason} -> {error,{[],?MODULE,Reason}}; Ret -> Ret end. %% @spec file2state(FileName) -> {ok,State} | {error,Reason} %% State = global_state() %% FileName = string() %% @doc Reads the schema state with all information of the processed %% schema from a file created with state2file/[1,2]. The %% format of this file is internal. The state can then be used %% validating an XML document. file2state(FileName) -> case catch ets:file2tab(FileName) of {ok,Tab} -> case load_xsd_state(Tab) of [{state,S}] when is_record(S,xsd_state) -> xmerl_xsd_vsn_check(S); %% {ok,S}; Other -> {error,{[],?MODULE,{incomplete_file,FileName,Other}}} end; {error,Reason} -> {error,{[],?MODULE,Reason}}; Other -> {error,{[],?MODULE,Other}} end. save_xsd_state(S) -> catch ets:insert(S#xsd_state.table,{state,S}). load_xsd_state(Table) -> catch ets:lookup(Table,state). xmerl_xsd_vsn() -> case lists:keysearch(vsn,1,xmerl_xsd:module_info(attributes)) of {value,{_,MD5_VSN}} -> MD5_VSN; _ -> undefined end. xmerl_xsd_vsn_check(S=#xsd_state{vsn=MD5_VSN}) -> case [V||{vsn,V}<-xmerl_xsd:module_info(attributes)] of [MD5_VSN] -> {ok,S}; _ -> {error,{[],?MODULE,{different_version_of_xmerl_xsd_module_used, state_not_reliable}}} end. %% @spec process_validate(Schema,Element) -> Result %% @equiv process_validate(Schema,Xml,[]) process_validate(Schema,Xml) -> process_validate(Schema,Xml,[]). %% @spec process_validate(Schema,Element,Options) -> Result %% Schema = string() %% Element = XmlElement %% Options = option_list() %% Result = {ValidXmlElement,State} | {error,Reason} %% Reason = [ErrorReason] | ErrorReason %% @doc Validates a parsed well-formed XML element towards an XML %% schema.

Validates in two steps. First it processes the schema, %% saves the type and structure info in an ets table and then %% validates the element towards the schema.

%%

Usage example:

%%

%% 1>{E,_} = xmerl_scan:file("my_XML_document.xml").
%% 2>{E2,_} = xmerl_xsd:validate("my_XML_Schema.xsd",E). %%

%%

Observe that E2 may differ from E if for instance there are default %% values defined in my_XML_Schema.xsd.

process_validate(Schema,Xml,Opts) -> TargetNamespace = target_namespace(Xml), case Schema of [H|_] when is_list(H); is_tuple(H) -> case process_schemas(Schema, [{target_namespace,TargetNamespace}|Opts]) of {ok,S} -> S2 = validation_options(S,Opts), validate3(S2#xsd_state.schema_name,Xml,S2); Err -> Err end; _ -> process_validate2(xmerl_scan:file(Schema),Schema,Xml,Opts) end. process_validate2(Err={error,_},_,_,_) -> Err; process_validate2({SE,_},Schema,Xml,Opts) -> S = initiate_state(Opts,Schema), S1 = validate_schema(SE,S), S2 = validate_schema_ph2(S1), S3 = schema_concistence_checks(S2), S4 = validation_options(S3,Opts), validate3(Schema,Xml,S4). validate3(Schema, Xml,S =#xsd_state{errors=[]}) -> Ret = {_, S2} = case catch validate_xml(Xml, S) of _Err = {error, Reason} -> {Xml, acc_errs(S, Reason)}; {'EXIT', Reason} -> {Xml, acc_errs(S, {error_path(Xml, Xml#xmlElement.name), ?MODULE, {undefined, {internal_error, Reason}}})}; {XML2, Rest, Sx} -> case lists:dropwhile(fun(X) when is_record(X, xmlComment) -> true; (_) -> false end, Rest) of [] -> case XML2 of [XML3] -> {XML3,Sx}; XML3 -> {XML3,Sx} end; UnValidated -> {Xml,acc_errs(Sx,{error_path(UnValidated,Xml#xmlElement.name),?MODULE, {unvalidated_rest,UnValidated}})} end end, save_to_file(S2,filename:rootname(Schema)++".tab2"), case S2#xsd_state.errors of [] -> Ret; L -> %%delete_table(S2), return_error(L) end; validate3(_,_,S) -> return_schema_error(S#xsd_state.errors). %% @spec process_schema(Schema) -> Result %% @equiv process_schema(Schema,[]) process_schema(Schema) -> process_schema(Schema,[]). %% @spec process_schema(Schema,Options) -> Result %% Schema = string() %% Result = {ok,State} | {error,Reason} %% State = global_state() %% Reason = [ErrorReason] | ErrorReason %% Options = option_list() %% @doc Reads the referenced XML schema and checks that it is valid. %% Returns the global_state() with schema info or an %% error reason. The error reason may be a list of several errors %% or a single error encountered during the processing. process_schema(Schema,Options) when is_list(Options) -> State = initiate_state(Options,Schema), process_schema(Schema, State); process_schema(Schema, State=#xsd_state{fetch_fun=Fetch})-> case Fetch(Schema, State) of {ok,{file,File},_} -> process_schema2(xmerl_scan:file(File), State, Schema); {ok,{string,Str},_} -> process_schema2(xmerl_scan:string(Str), State, Schema); {ok,[],_} -> {error,enoent}; Err -> Err end. process_schema2(Err={error,_},_,_) -> Err; process_schema2({SE,_},State,_Schema) -> S1 = validate_schema(SE,State), S2 = validate_schema_ph2(S1), case schema_concistence_checks(S2) of S3 = #xsd_state{errors=[]} -> {ok,S3}; S3 -> delete_table(S3), return_error(S3#xsd_state.errors) end. %% @spec process_schemas(Schemas) -> Result %% @equiv process_schema(Schemas,[]) process_schemas(Schemas) -> process_schemas(Schemas,[]). %% @spec process_schemas(Schemas,Options) -> Result %% Schemas = [{NameSpace,string()}|Schemas] | [] %% Result = {ok,State} | {error,Reason} %% Reason = [ErrorReason] | ErrorReason %% Options = option_list() %% @doc Reads the referenced XML schemas and controls they are valid. %% Returns the global_state() with schema info or an %% error reason. The error reason may be a list of several errors %% or a single error encountered during the processing. process_schemas(Schemas=[{_,Schema}|_],Options) when is_list(Options) -> State = initiate_state(Options,Schema), process_schemas(Schemas, State); process_schemas([{_NS,Schema}|Rest],State=#xsd_state{fetch_fun=Fetch}) -> Res= case Fetch(Schema,State) of {ok,{file,File},_} -> process_schema2(xmerl_scan:file(File),State,Schema); {ok,{string,Str},_} -> process_schema2(xmerl_scan:string(Str),State,Schema); {ok,[],_} -> {ok,State}; Err -> Err end, case Res of {ok,S2} -> process_schemas(Rest,S2); _ -> Res end; process_schemas([],S) when is_record(S,xsd_state) -> {ok,S}. initiate_state(Opts,Schema) -> XSDBase = filename:dirname(Schema), {{state,S},RestOpts}=new_state(Opts), S2 = create_tables(S), initiate_state2(S2#xsd_state{schema_name = Schema, xsd_base=XSDBase, fetch_fun = fun fetch/2}, RestOpts). initiate_state2(S,[]) -> S; initiate_state2(S,[{tab2file,Bool}|T]) -> initiate_state2(S#xsd_state{tab2file=Bool},T); initiate_state2(S,[{xsdbase, XSDBase}|T]) -> initiate_state2(S#xsd_state{xsd_base=XSDBase, external_xsd_base=true},T); initiate_state2(S,[{fetch_fun,FetchFun}|T]) -> initiate_state2(S#xsd_state{fetch_fun=FetchFun},T); initiate_state2(S,[{fetch_path,FetchPath}|T]) -> initiate_state2(S#xsd_state{fetch_path=FetchPath},T); initiate_state2(S,[{schema_preprocessed,Bool}|T]) -> initiate_state2(S#xsd_state{schema_preprocessed=Bool},T); initiate_state2(S,[{target_namespace,_NS}|T]) -> %% initiate_state2(S#xsd_state{targetNamespace=if_list_to_atom(NS)},T); initiate_state2(S,T); %% used in validation phase initiate_state2(S,[H|T]) -> error_msg("~w: invalid option: ~p~n",[?MODULE, H]), initiate_state2(S,T). validation_options(S,[{target_namespace,NS}|T]) -> validation_options(S#xsd_state{targetNamespace=if_list_to_atom(NS)},T); validation_options(S,[_H|T]) -> validation_options(S,T); validation_options(S,[]) -> S. new_state(Opts) -> XSD_VSN = xmerl_xsd_vsn(), keysearch_delete(state,1,Opts,{state,#xsd_state{vsn=XSD_VSN}}). %% validate_schema/2 traverses the shema element to save necessary %% information as defined elements and types. validate_schema(E=#xmlElement{}, S) -> %% namespace is always a xmlNamespace record, attributs a list of %% #xmlAttributes and content a list of #xmlElements|#xmlText|... %% Have to save namespace nodes. Use of namespace in paths for %% unique,key and keyref are used after the schema is processed. S1 = S#xsd_state{targetNamespace=target_namespace(E)}, case is_already_processed(S1#xsd_state.targetNamespace,S1) of true -> save_namespace_definition(S1#xsd_state.targetNamespace,S1); _ -> S2 = S1,%save_namespace_definition(S1#xsd_state.targetNamespace,S1), {CM,S3} = traverse_content(E,S2), save_schema_element(CM,S3), S3 end. validate_schema_ph2(S=#xsd_state{derived_types=[]}) -> S; validate_schema_ph2(S=#xsd_state{derived_types=DT}) -> deduce_derived_types(DT,S). %% traverse_content/2 creates the content model of the schema. %% content model depends on (1) the type: %% complex type: %% sequence, choice, all %% simple type: no content other than characters %% (2) minOccurs/maxOccurs attributes. %% The schema for schemas content model is: %% schema: ((include | import | redefine | annotation)*, %% (((simpleType | complexType | group | attributeGroup) %% | element | attribute | notation), annotation*)*) %% attribute: (annotation?, simpleType?) %% element: (annotation?, ((simpleType | complexType)?, (unique | %% key | keyref)*)) %% complexType: (annotation?, (simpleContent | complexContent | %% ((group | all | choice | sequence)?, %% ((attribute | attributeGroup)*,anyAttribute?)))) %% attributeGroup:(annotation?, %% ((attribute | attributeGroup)*, anyAttribute?)) %% group: (annotation?, (all | choice | sequence)?) %% all: (annotation?, element*) %% sequence: (annotation?, %% (element | group | choice | sequence | any)*) %% choice: (annotation?, (element | group | choice | sequence | %% any)*) %% any: (annotation?) any wellformed xml inside "any" %% unique: (annotation?, (selector, field+)) %% key: (annotation?, (selector, field+)) %% keyref: (annotation?, (selector, field+)) %% selector: (annotation?) %% field: (annotation?) %% notation: (annotation?) %% annotation: (appinfo | documentation)* %% appinfo: ({any})* %% documentation: ({any})* %% simpleType: (annotation?, (restriction | list | union)) %% restriction: (annotation?, (simpleType?, (minExclusive | %% minInclusive | maxExclusive | maxInclusive | %% totalDigits | fractionDigits | length | minLength | %% maxLength | enumeration | whiteSpace | pattern)*)) %% list: (annotation?, simpleType?) %% union: (annotation?, simpleType*) %% include: (annotation?) %% import: (annotation?) %% redefine: (annotation | (simpleType | complexType | group | %% attributeGroup))* traverse_content(E=#xmlElement{name=Name},S) -> case local_name(Name) of schema -> Content = E#xmlElement.content, %% S1 = S#xsd_state{targetNamespace=target_namespace(E)}, ThisNS = {"#this#",S#xsd_state.schema_name, S#xsd_state.targetNamespace}, S2 = S#xsd_state{checked_namespace_nodes= add_once(ThisNS,S#xsd_state.checked_namespace_nodes)}, S3 = namespace_nodes(E,S2), S4 = element_form_default(E,S3), S5 = attribute_form_default(E,S4), S6 = substitution_default(finalDefault,E,S5), S7 = substitution_default(blockDefault,E,S6), traverse_content2(Content,S7,[]); Err -> exit({error,{[],?MODULE,{schema_error,Err}}}) end. traverse_content2([],S,Acc) -> {reverse(remove_annotation(Acc)),reset_scope(S)}; traverse_content2([El|Els],S,Acc) when is_record(El,xmlElement) -> %% element declaration: save name, type, scope. {Object,S2} = element_content(kind(El,S),El,S#xsd_state.scope),%% Object={Kind,Obj} traverse_content2(Els,S2,[Object|Acc]); traverse_content2([_T|Els],S,Acc) -> %% xmlText,xmlPI ... traverse_content2(Els,S,Acc). target_namespace(E) -> case get_attribute_value(targetNamespace,E,undefined) of URI when is_list(URI) -> list_to_atom(URI); URI -> URI end. %% namespace_nodes/2 -> %% NS. namespace_nodes(#xmlElement{namespace=#xmlNamespace{nodes=NS}}, S=#xsd_state{namespace_nodes=NSN, global_namespace_nodes=GNSN}) -> S2 =S#xsd_state{namespace_nodes=foldl(fun add_once/2,NSN,NS)}, S2#xsd_state{global_namespace_nodes= add_key_once(S#xsd_state.targetNamespace,1, {S#xsd_state.targetNamespace,NS}, GNSN)}. attribute_form_default(#xmlElement{attributes=Atts},S)-> Def=form_default(attributeFormDefault,Atts,S), S#xsd_state{attributeFormDefault=Def}. element_form_default(#xmlElement{attributes=Atts},S) -> Def=form_default(elementFormDefault,Atts,S), S#xsd_state{elementFormDefault=Def}. form_default(Key,Atts,_S) -> case keyNsearch(Key,#xmlAttribute.name,Atts,unqualified) of #xmlAttribute{value=V} when is_list(V) -> list_to_atom(V); #xmlAttribute{value=V} ->V; _-> unqualified end. substitution_default(Subst = finalDefault,El,S) -> S#xsd_state{finalDefault = substitution(Subst,El,S)}; substitution_default(Subst = blockDefault,El,S) -> S#xsd_state{blockDefault = substitution(Subst,El,S)}. substitution(Subst,El,_S) -> split_by_whitespace(get_attribute_value(Subst,El,[]),[]). %% element_content may be one of: annotation, type def(simple or %% complex), import, unique, key, keyref, attribute def, attribute %% group, all, group, complexContent, simpleContent, choice, sequence element_content({attribute,S=#xsd_state{scope=Scope}},Att,Env) -> case qualify_NCName(Att,S) of no_name -> Ref = attribute_ref(Att), AttRef = {attribute,get_QName(Ref,Att#xmlElement.namespace, %%QQQ reset_scope(S))}, {AttRef,add_ref(S,AttRef)}; Name -> {AttrType,S2} = attribute_type(Att,[Name|Env],S), S3 = check_cm(attribute,allowed_content(attribute,Env),AttrType,S2), {Attr,S4} = attribute_properties(Att#xmlElement.attributes, #schema_attribute{type=AttrType},S3), Object = {attribute, Attr#schema_attribute{name=Name,scope=Scope}}, S5 = save_object(Object,S4), {{attribute,Name},S5} end; element_content({element,S},El,Env) -> %% The type of an element may be a simple or complex type (named %% or anonymous), a referenced name or member of a substitution group. case qualify_NCName(El,S) of no_name -> Ref = particle_ref(El), {Occ,S2} = occurance(El,{1,1},S), %% 3.3.3 bullet 2.2 S3 = element_forbidden_properties(El,S2), S4 = element_forbidden_content(El#xmlElement.content,S3), ElRef = {element, {get_QName(Ref,El#xmlElement.namespace,reset_scope(S)), Occ}}, {ElRef,add_ref(S4,ElRef)}; Name -> {Type,S2} = element_type(El,[Name|Env],S), S3 = check_cm(element,allowed_content(element,Env),Type,S2), Type2 = remove_annotation(Type), Unique = [X||X={unique,_} <- Type2], Key = [X||X={K,_} <- Type2,K == key orelse K==keyref], {Occur,S4} = occurance(El,{1,1},S3), {SE,S5} = element_properties(El#xmlElement.attributes, #schema_element{},El,S4), CM = remove_attributes([X||X={Y,_}<-Type2, unique=/=Y,key=/=Y, keyref=/=Y,annotation=/=Y]), %% take care of key/keyref later SE2 = SE#schema_element{name=Name,type=CM,uniqueness=Unique, key=Key, occurance=Occur, scope=S5#xsd_state.scope}, S6 = insert_substitutionGroup(SE2,S5), S7 = save_object({element,SE2},S6), {{element,{Name,Occur}},S7} end; element_content({complexType,S},CT,Env) -> %% complex type definition without a name is returnd and added to %% the content model at this level. A complex type may also contain %% attributes or attribute group references in the end of its content. %%?debug("complexType content: ~p~nenv: ~p~n",[CT,Env]), {SCT,S1} = c_t_properties(CT,#schema_complex_type{},S), {Mixed,S2} = mixed(CT,S1), Complexity = complexity(CT#xmlElement.content), {Object,Name,S7} = case qualify_NCName(CT,S2) of no_name -> {CM,S3} = type(CT#xmlElement.content, in_scope(anonymous,S2),[complexType|Env]), S4 = check_cm(complexType,allowed_content(complexType,Env),CM,S3), Name1 = get_QName('_xmerl_no_name_',CT#xmlElement.namespace,S4), S5 = set_scope(S#xsd_state.scope,S4), {Content,Attributes}=split_content(remove_annotation(CM)), SCT2 = base_type(Content,SCT), CTObj = {complexType, SCT2#schema_complex_type{name=Name1, scope=S5#xsd_state.scope, attributes=Attributes, complexity=Complexity, content=mixify(Mixed,Content)}}, {CTObj,Name1,S5}; Name2 -> S3 = in_scope(Name2,S2), S3a = push_circularity_mark({typeDef,Name2},S3), {CM,S4} = type(CT#xmlElement.content,S3a, [complexType|Env]), S4a = pop_circularity_mark({typeDef,Name2},S4), S5 = check_cm(complexType,allowed_content(complexType,Env), CM,S4a), S6 = set_scope(S#xsd_state.scope,S5), {Content,Attributes}=split_content(remove_annotation(CM)), SCT2 = base_type(Content,SCT), {{complexType, SCT2#schema_complex_type{name=Name2, scope=S6#xsd_state.scope, attributes=Attributes, complexity=Complexity, content=mixify(Mixed,Content)}}, Name2,S6} end, S8 = save_object(Object,S7), S9 = derived_type(Object,S8), {{complexType,Name},S9}; element_content({attributeGroup,S},AG,Env) -> %% an attribute group always have a name or a ref, the content is %% (annotation?,(attribute | attributGroup)*, anyAttribute?). case qualify_NCName(AG,S) of no_name -> %% an attribute group ref inside complex type def or attr %% group def ( XSD1:3.6.2). Ref = attributeGroup_ref(AG), AGRef = {attributeGroup,get_QName(Ref,AG#xmlElement.namespace,%%QQQ reset_scope(S))}, {AGRef,add_ref(S,AGRef)}; Name -> %% must occur on top level of schema( XSD1:3.6.2). The %% only thing needed in content are the names of all %% attributes or referenced attribute groups. {CM,S2} = type(AG#xmlElement.content,in_scope(Name,S), [attributeGroup|Env]), S2_1 = out_scope(Name,S2), S3 = check_cm(attributeGroup,allowed_content(attributeGroup,Env),CM,S2_1), S4 = save_object({attributeGroup, #schema_attribute_group{name=Name, content=keep_attributes(CM)}},S3), {{attributeGroup,Name},S4} end; element_content({group,S},G,Env) -> %% a model group associates a name with a content model. It can be %% a reference or a definition. %% content is one of all, choice or sequence. case qualify_NCName(G,S) of no_name -> % reference. %% If reference is a recursive ref to a group with the %% same name as this group points at the redefined valid %% schema group. See XMLSchema part 1, section 4.2.2 %% "Schema Representation Constraint: Individual Component %% Redefinition" Ref = particle_ref(G), {Occur,S2} = occurance(G,{1,1},S), GRef = {group, {get_QName(Ref,G#xmlElement.namespace,reset_scope(S2)),%%QQQ Occur}}, {GRef,add_ref(S2,GRef)}; Name -> % definition, always schema or redefine as parent {CM,S2} = type(G#xmlElement.content,in_scope(Name,S),[group|Env]), CM2 = recursive_redefine(Name,CM,S2), S2_1 = out_scope(Name,S2), S3 = check_cm(group,allowed_content(group,Env),CM2,S2_1), S4 = save_object({group,#schema_group{name=Name, content=remove_annotation(CM2)}},S3), {{group,Name},S4} end; element_content({all,S},All,Env) -> %% each element occurs 0 or 1 times in any order %% {all,[{element_name,occurance}]} %% CM = content_model(Seq#xmlElement.content,S,[all|Env]), {Occur,S1} = occurance(All,{1,1},S), {CM,S2} = type(All#xmlElement.content,S1,[all|Env]), S3 = check_cm(all,allowed_content(all,Env),CM,S2), {{all,{[X||X = {element,_} <- CM],Occur}},S3}; element_content({sequence,S},Seq,Env) -> %% {sequence,[{element_name,occurance}]} %% CM = content_model(Seq#xmlElement.content,S,[sequence|Env]), {Occur,S1} = occurance(Seq,{1,1},S), {CM,S2} = type(Seq#xmlElement.content,S1,[sequence|Env]), S3 = check_cm(sequence,allowed_content(sequence,Env),CM,S2), {{sequence,{remove_annotation(CM),Occur}},S3}; element_content({choice,S},Choice,Env) -> %% allowed content: (annotation?, %% (element | group | choice | sequence | any)*) %% returns: {choice,[element_name]} %% CM = content_model(Choice#xmlElement.content,S,[choice|Env]), {Occur,S1} = occurance(Choice,{1,1},S), {CM,S2} = type(Choice#xmlElement.content,S1,[choice|Env]), S3 = check_cm(choice,allowed_content(choice,Env),CM,S2), {{choice,{remove_annotation(CM),Occur}},S3}; element_content({any,S},Any,_Env) -> {Occur,S1} = occurance(Any,{1,1},S), NameSpace = wildcard_namespace(Any,S1), PC = processor_contents(Any), ?debug("element_content, any: Any content:~p~n",[Any#xmlElement.content]), Pred = fun(E=#xmlElement{}) -> case kind(E) of annotation -> false; _ -> true end; (_) -> false end, S2 = case filter(Pred,Any#xmlElement.content) of [] -> S1; Err -> %% report error acc_errs(S1,{error_path(Any,Any#xmlElement.name),?MODULE, {unexpected_content_in_any,Err}}) end, {{any,{NameSpace,Occur,PC}},S2}; element_content({IDC,S},El,Env) when IDC==unique;IDC==key;IDC==keyref-> QName = qualify_NCName(El,reset_scope(S)), Ref = keyrefer(IDC,El,S), {SelField,S2} = type(El#xmlElement.content,S,[IDC|Env]), case {[X||X={selector,_} <- SelField],[X||X={field,_} <- SelField]} of {[Sel],Fields=[_H|_T]} -> IDConstr = #id_constraint{category=IDC,name=QName,refer=Ref, selector=Sel,fields=Fields}, S3=save_idc(IDC,IDConstr,S2), {{IDC,IDConstr},S3}; Err -> S3 = acc_errs(S2,{error_path(El,El#xmlElement.name),?MODULE, {erroneous_content_in_identity_constraint,IDC,Err}}), {{IDC,[]},S3} end; element_content({selector,S},Sel,_Env) -> case get_attribute_value(xpath,Sel,error) of error -> S2 = acc_errs(S,{error_path(Sel,Sel#xmlElement.name),?MODULE, {missing_xpath_attribute,selector}}), {{selector,[]},S2}; XPath -> {{selector,XPath},S} end; element_content({field,S},F,_Env) -> case get_attribute_value(xpath,F,error) of error -> S2 = acc_errs(S,{error_path(F,F#xmlElement.name),?MODULE, {missing_xpath_attribute,field}}), {{field,[]},S2}; XPath -> {{field,XPath},S} end; element_content({notation,S},_N,_Env) -> {{notation,[]},S}; element_content({annotation,S},_Ann,_Env) -> {{annotation,[]},S}; element_content({appinfo,S},_AI,_Env) -> {{appinfo,[]},S}; element_content({documentation,S},_D,_Env) -> {{documentation,[]},S}; element_content({simpleType,S},ST,Env) -> Name = case qualify_NCName(ST,S) of no_name -> get_QName('_xmerl_no_name_',ST#xmlElement.namespace, in_scope('_xmerl_no_name_',S));%%--- QName -> QName end, {Type,S2} = type(ST#xmlElement.content, push_circularity_mark({typeDef,Name},in_scope(Name,S)), [simpleType|Env]), S2_1 = pop_circularity_mark({typeDef,Name},S2), S3 = set_scope(S#xsd_state.scope,S2_1), S4 = check_cm(simpleType,allowed_content(simpleType,Env),Type,S3), {BaseType,Facets} = facets(Type,S4), Variety = variety(Type), Final = simpleType_final(ST,S4), Object = {simpleType,#schema_simple_type{name=Name, base_type=BaseType, final=Final, facets=Facets, variety=Variety, content=remove_annotation(Type), scope=S4#xsd_state.scope}}, S5 = save_object(Object,S4), S6 = derived_type(Object,S5), {{simpleType,Name},S6}; element_content({restriction,S},R,Env) -> %% If complexContent, all element definitions of base type must be %% repeated. However, attributes are inherited. %% possible parents are simpleType or complexType (grand parent) %% If parent is simpleType the base type is either the attribute %% base (resolved by base_type/1) or the type defined in content. {CM,S2} = type(R#xmlElement.content,S,[restriction|Env]), S3 = check_cm(restriction,allowed_content(restriction,Env),CM,S2), {BaseTypeName,CM2,S4} = restriction_base_type(R,CM,S3), %% a QName %% S5 = add_circularity_mark(BaseTypeName,S4), BaseTypeType = base_type_type(Env), {{restriction,{BaseTypeName,remove_annotation(CM2)}}, add_ref(S4,{BaseTypeType,BaseTypeName})}; %% Does not return name but content model element_content({list,S=#xsd_state{scope=Scope}},L,Env) -> {Type,S2} = list_type(L,S,[list|Env]), S3 = check_cm(list,allowed_content(list,Scope),Type,S2), {{list,remove_annotation(Type)},S3}; element_content({union,S=#xsd_state{scope=Scope}},U,Env) -> {Types,S2} = union_types(U,S,[union|Env]), S3 = check_cm(union,allowed_content(union,Scope),Types,S2), {{union,Types},S3}; element_content({include,S=#xsd_state{schema_name=ThisSchema, targetNamespace=TNS}},I,_Env) -> S2 = process_external_schema_once(I,S#xsd_state.targetNamespace,S), {{include,[]},S2#xsd_state{schema_name=ThisSchema,targetNamespace=TNS}}; element_content({import,S=#xsd_state{schema_name=ThisSchema, targetNamespace=ThisNameS}},I,_Env) -> %% import unlike include and redefine may include definitions from %% other namespaces than the target namespace of the including %% schema. %% namespace and schemaLocation Namespace = case get_attribute_value(namespace,I,undefined) of L when is_list(L) -> list_to_atom(L); A -> A end, %% If Namespace is absent, then the import allows unqualified %% reference to components with no target namespace. SchemaLocation = get_attribute_value(schemaLocation,I,absent), %% If SchemaLocation is absent, the identification of that schema %% is leaved to the instance, application or user, via the %% mechanisms described §4.3 in XML Schema Part 1. S2 = process_external_schema_once(SchemaLocation,Namespace,S), {{import,[]},S2#xsd_state{schema_name=ThisSchema, targetNamespace=ThisNameS}}; element_content({redefine,S=#xsd_state{schema_name=ThisSchema}},RD,Env) -> %% Must be a child of "schema" element %% redefine of simple and complex types, groups and attribute %% groups obtained from external files. %% Brings in all definitions of external schema and redefines one. %% External schema must be in same namespace as current schema or %% no namespace. S2 = process_external_schema_once(RD,S#xsd_state.targetNamespace, S#xsd_state{errors=[]}), case S2#xsd_state.errors of [] -> %% RedefSource = S2#xsd_state.schema_name, S3 = S2#xsd_state{schema_name=ThisSchema, %% global_element_source=add_once({ThisSchema,RedefSource},GES), errors=S#xsd_state.errors}, {CM,S4} = type(RD#xmlElement.content, S3#xsd_state{redefine=true},[redefine|Env]), S5 = S4#xsd_state{redefine=false}, S6 = check_cm(redefine,allowed_content(redefine,Env),CM,S5), S7 = redefine(CM,S6), {{redefine,[]},S7}; Errs -> S3 = S2#xsd_state{schema_name=ThisSchema, errors=Errs++S#xsd_state.errors}, {{redefine,[]},S3} end; element_content({anyAttribute,S},AA,_Env) -> %% has attributes processContents = (lax | skip | strict) : strict %% namespace = ((##any | ##other) | %% List of (anyURI | (##targetNamespace | ##local)) ) : ##any NameSpace = wildcard_namespace(AA,S), PC = processor_contents(AA), Pred = fun(E=#xmlElement{}) -> case kind(E) of annotation -> false; _ -> true end; (_) -> false end, S2 = case filter(Pred,AA#xmlElement.content) of [] -> S; Err -> %% report error acc_errs(S,{error_path(AA,AA#xmlElement.name),?MODULE, {content_in_anyAttribute,Err}}) end, {{anyAttribute,{NameSpace,PC}},S2}; element_content({simpleContent,S},SC,Env) -> %% only as child of complexType. %% allowed content: (annotation?, (restriction | extension)) S2 = pre_check_cm(simpleContent,SC#xmlElement.content,mk_name(S#xsd_state.scope),S), case filter(fun(X=#xmlElement{}) -> case kind(X) of restriction -> true; extension -> true; _ -> false end; (_) -> false end, SC#xmlElement.content) of [E] -> element_content(kind(E,S2),E,[simpleContent|Env]); Err -> {[],acc_errs(S2,{error_path(SC,SC#xmlElement.name),?MODULE, {content_in_simpleContent,Err}})} end; element_content({complexContent,S},CC,Env) -> S2 = pre_check_cm(complexContent,CC#xmlElement.content, mk_name(S#xsd_state.scope),S), %% the mixed attribute was fetched in the complexType element that %% held this complexContent case filter(fun(X=#xmlElement{}) -> case kind(X) of restriction -> true; extension -> true; _ -> false end; (_) -> false end,CC#xmlElement.content) of [E] -> element_content(kind(E,S2),E,[complexContent|Env]); Err -> {[],acc_errs(S2,{error_path(CC,CC#xmlElement.name),?MODULE, {complexContent_content_failure,Err}})} end; element_content({extension,S},Ext,Env) -> %% may be used in both simple and complex content with different %% content allowed. %% this should be returned and checked for allowed content in %% parent, but we don't know if base type is a forward reference. BaseType = base_type(Ext), {CM,S2} = type(Ext#xmlElement.content,S,[extension|Env]), S3 = check_cm(extension,allowed_content(extension,S#xsd_state.scope),CM,S2), BaseTypeName = get_QName(BaseType,Ext#xmlElement.namespace,reset_scope(S)),%%QQQ BaseTypeType = base_type_type(Env), {{extension,{BaseTypeName,CM}},add_ref(S3,{BaseTypeType,BaseTypeName})}; %% The following are facets element_content({minExclusive,S},CF,_Env) -> Value = get_value(CF), {{minExclusive,Value},S}; element_content({minInclusive,S},CF,_Env) -> Value = get_value(CF), {{minInclusive,Value},S}; element_content({maxExclusive,S},CF,_Env) -> Value = get_value(CF), {{maxExclusive,Value},S}; element_content({maxInclusive,S},CF,_Env) -> Value = get_value(CF), {{maxInclusive,Value},S}; element_content({totalDigits,S},CF,_Env) -> Value = get_value(CF), {{totalDigits,Value},S}; element_content({fractionDigits,S},CF,_Env) -> Value = get_value(CF), {{fractionDigits,Value},S}; element_content({length,S},CF,_Env) -> Value = get_value(CF), {{length,Value},S}; element_content({minLength,S},CF,_Env) -> Value = get_value(CF), {{minLength,Value},S}; element_content({maxLength,S},CF,_Env) -> Value = get_value(CF), {{maxLength,Value},S}; element_content({enumeration,S},CF,_Env) -> Value = get_value(CF), {{enumeration,Value},S}; element_content({whiteSpace,S},CF,_Env) -> Value = get_value(CF), {{whiteSpace,Value},S}; element_content({pattern,S},CF,_Env) -> Value = get_value(CF), {{pattern,Value},S}; element_content({Other,S=#xsd_state{errors=Errs}},C,_Env) -> case Errs of [] -> {[],acc_errs(S,{error_path(C,C#xmlElement.name),?MODULE, {unknown_content,Other}})}; _ -> {[],S} end. type(C,S,Env) -> type(C,S,Env,[]). type([E=#xmlElement{}|Els],S,Env,Acc) -> {CM,S2} = element_content(kind(E,S),E,Env), type(Els,set_scope(S#xsd_state.scope,S2), Env,[CM|Acc]); type([_H|Els],S,Env,Acc) -> type(Els,S,Env,Acc); type([],S,_Env,Acc) -> {flatten(reverse(Acc)),S}. simpleUrType() -> {anySimpleType,[]}. %% simpleUrTypeRef() -> %% {anySimpleType,[],'http://www.w3.org/2001/XMLSchema'}. urType() -> {anyType,[]}. attribute_type(Att,Env=[Name|_],S) -> %% The attribute type may be referenced by the type attribute or %% explicitly defined as a simpleType inside the attribute %% element. In the latter case the type must be saved with the %% unique name of the scope and name attribute combined. {CM,S2} = type(Att#xmlElement.content,in_scope(Name,S),Env), case remove_annotation(CM) of [] -> case keyNsearch(type,#xmlAttribute.name, Att#xmlElement.attributes,[]) of #xmlAttribute{value=SimpleTypeName} -> %% a QName as string %% This name may be a forward reference to a simple type. TypeRef = {simpleType,get_QName(SimpleTypeName, %%QQQ Att#xmlElement.namespace, reset_scope(S))}, {[TypeRef], set_scope(S#xsd_state.scope,add_ref(S2,TypeRef))}; _ -> {[{simpleType,simpleUrType()}], set_scope(S#xsd_state.scope,S2)} end; Type -> {Type,set_scope(S#xsd_state.scope,S2)} end. element_type(El,Env=[Name|_],S) -> %% In the top environment of the schema there may exist: global %% element declarations, substitution group members. %% Other element declarations are local {CM,S2} = type(El#xmlElement.content,in_scope(Name,S),Env), case remove_annotation(CM) of [] -> %% no simple or complex type definition case {get_attribute_value(type,El,no_name), get_attribute_value(substitutionGroup,El,undefined)} of {no_name,SGName} when is_list(SGName) -> QN = get_QName(SGName,El#xmlElement.namespace,reset_scope(S)),%%QQQ case is_simple_type(QN,S2) of true -> exit(this_can_never_happen), %% A substitutionGroup is an element, and %% the type of this element is the %% resolved type of the referenced %% element. TRef = {simpleType,QN}, {[TRef], add_ref(set_scope(S#xsd_state.scope,S2),TRef)}; _ -> {[{substitutionGroup,QN}], set_scope(S#xsd_state.scope,S2)} end; {TName,_} when is_list(TName) -> QN = get_QName(TName,El#xmlElement.namespace,reset_scope(S2)),%%QQQ case is_simple_type(QN,S2) of true -> TRef={simpleType,QN}, {[TRef], add_ref(set_scope(S#xsd_state.scope,S2),TRef)}; _ -> TRef = {simple_or_complex_Type,QN}, {[TRef], add_ref(set_scope(S#xsd_state.scope,S2),TRef)} end; _ -> case {get_attribute_value(ref,El,no_name), is_global_env(Env)} of {Ref,false} when is_list(Ref) -> %% a ref attribute references an element {[{element, get_QName(Ref,El#xmlElement.namespace,%%QQQ reset_scope(S))}], set_scope(S#xsd_state.scope,S2)}; _ -> {[urType()], set_scope(S#xsd_state.scope,S2)} end end; %% Type -> %% {Type,set_scope(S#xsd_state.scope,S2)} _Type -> {CM,set_scope(S#xsd_state.scope,S2)} end. %% list_type/3 -> list() | name() list_type(L,S,Env) -> case keyNsearch(itemType,#xmlAttribute.name,L#xmlElement.attributes,[]) of [] -> %% {element(1,type(L#xmlElement.content,S,Env)),S}; type(L#xmlElement.content,S,Env); #xmlAttribute{value=V} -> %% this type should be preliminary saved and checked after %% the parsing of the schema. TypeRef ={simpleType, get_QName(V,L#xmlElement.namespace,reset_scope(S))}, {[TypeRef],add_ref(S,TypeRef)} end. union_types(U,S,Env) -> {MemberTypes,S2} = case keyNsearch(memberTypes,#xmlAttribute.name,U#xmlElement.attributes,[]) of [] -> {[],S}; #xmlAttribute{value = NameString} -> Names = namestring2namelist(NameString), UTypeRefs = [{simpleType,get_QName(X,U#xmlElement.namespace, reset_scope(S))}||X<-Names], {UTypeRefs,foldl(fun(X,S_in) -> add_ref(S_in,X) end,S,UTypeRefs)} end, {DefinedTypes,S3} = union_types1(U#xmlElement.content,S2,Env), {MemberTypes++DefinedTypes,S3}. union_types1(C,S,Env) -> union_types1(C,S,Env,[]). union_types1([],S,_Env,Acc) -> {Acc,S}; union_types1([C=#xmlElement{}|Cs],S,Env,Acc) -> case element_content(kind(C,S),C,Env) of {ST={simpleType,_},S2} -> union_types1(Cs,S2,Env,[ST|Acc]); {{annotation,_},S2} -> union_types1(Cs,S2,Env,Acc); {IllegalType,S2} -> Err = {error_path(C,C#xmlElement.name),?MODULE, {union_member_type_not_simpleType,IllegalType}}, union_types1(Cs,acc_errs(S2,Err),Env,Acc) end; union_types1([_H|T],S,Env,Acc) -> union_types1(T,S,Env,Acc). %% If a group in a redefine refer to itself the reference is to the %% "old" definition of the group. See XMLSchema part 1, section 4.2.2 %% "Schema Representation Constraint: Individual Component %% Redefinition" recursive_redefine(Name,CM,S=#xsd_state{redefine=true}) -> case remove_annotation(CM) of [{MG,{C,Occ}}] -> [{MG,{recursive_redefine2(Name,C,S),Occ}}]; _ -> CM end; recursive_redefine(_,CM,_) -> CM. recursive_redefine2(Name,[{group,{Name,Occ}}|T],S) -> %% Rename old group definition case rename_redef_group(Name,S) of failed -> [{group,{Name,Occ}}|T]; NewName -> [{group,{NewName,Occ}}|T] end; recursive_redefine2(Name,[{MG,{C,Occ}}|T],S) when MG =:= sequence; MG =:= choice; MG=:= all; MG=:= group -> C2 = recursive_redefine2(Name,C,S), [{MG,{C2,Occ}}|recursive_redefine2(Name,T,S)]; recursive_redefine2(Name,[H|T],S) -> [H|recursive_redefine2(Name,T,S)]; recursive_redefine2(_,[],_) -> []. rename_redef_group(Name={LN,Scope,NS},S) -> %% Scope must be [] NewName = {LN,['#redefine'|Scope],NS}, case resolve({group,NewName},S) of {SG=#schema_group{name=Name},_} -> _ = save_object({group,SG#schema_group{name=NewName}},S), NewName; _ -> failed end. add_ref(S=#xsd_state{unchecked_references=UR},STRef={simpleType,Ref}) -> case {is_builtin_simple_type(Ref),Ref} of {true,_} -> S; {_,{'',_,_}} -> S; _ -> S2 = S#xsd_state{unchecked_references=add_once(STRef,UR)}, add_circularity_ref(STRef,S2) end; add_ref(S=#xsd_state{unchecked_references=UR},STRef={simple_or_complex_Type,Ref}) -> case {is_builtin_simple_type(Ref),Ref} of {true,_} -> S; {_,{'',_,_}} -> S; {_,{anyType,_,?XSD_NAMESPACE}} -> S; {_,{anySimpleType,_,?XSD_NAMESPACE}} -> S; _ -> S2 = S#xsd_state{unchecked_references=add_once(STRef,UR)}, add_circularity_ref(STRef,S2) end; add_ref(S,{complexType,{anyType,_,?XSD_NAMESPACE}}) -> S; add_ref(S=#xsd_state{unchecked_references=UR},Ref) -> S2 = S#xsd_state{unchecked_references=add_once(Ref,UR)}, add_circularity_ref(Ref,S2). %% add_ref(S=#xsd_state{unchecked_references=UR},Ref) -> %% S#xsd_state{unchecked_references=add_once(Ref,UR)}. %% Name of simpleType/complexType is unique within the whole %% environment, which is checked elsewhere, so ignore the kind of type %% for simplicity. add_circularity_ref(Ref={Kind,To},S=#xsd_state{circularity_disallowed=CD, redefine=false}) when Kind==simpleType;Kind==simple_or_complex_Type;Kind==complexType -> case get_circularity_mark(Ref,S) of [] -> S; From -> %% This is the node from which the graph reaches Ref S#xsd_state{circularity_disallowed=add_once({From,{typeDef,To}},CD)} end; add_circularity_ref(_,S) -> S. get_circularity_mark({TD,_},S) when TD==simpleType;TD==complexType;TD==simple_or_complex_Type -> case S#xsd_state.circularity_stack of [From={typeDef,_}|_] -> From; _ -> [] end; get_circularity_mark(_,_S) -> []. push_circularity_mark(Mark,S=#xsd_state{circularity_stack=CS, redefine=false}) -> S#xsd_state{circularity_stack=[Mark|CS]}; push_circularity_mark(_,S) -> S. pop_circularity_mark(Mark,S=#xsd_state{redefine=false}) -> case S#xsd_state.circularity_stack of [Mark|Rest] -> S#xsd_state{circularity_stack=Rest}; _ -> S end; pop_circularity_mark(_,S) -> S. derived_type({complexType,#schema_complex_type{name=Name,content=C}}, S=#xsd_state{derived_types=DT}) -> case {keymember(restriction,1,C),keymember(extension,1,C)} of {false,false} -> S; _ -> S#xsd_state{derived_types=[{complexType,Name}|DT]} end; derived_type({simpleType,#schema_simple_type{name=Name,content=C}}, S=#xsd_state{derived_types=DT}) -> case keymember(restriction,1,C) of true -> S#xsd_state{derived_types=[{simpleType,Name}|DT]}; _ -> S end. facets([{annotation,_}|Rest],S) -> facets(Rest,S); facets([{restriction,{BaseType,CM}}],_S) -> Facets = [X||X={F,_} <- CM,is_facet(F)], GroupFacets = group_facets(Facets), {BaseType,GroupFacets}; facets(_,_S) -> {undefined,[]}. group_facets(Facets) -> group_facets(Facets,[]). group_facets(L=[{enumeration,_}|_Rest],Acc) -> {Enums,Rest} = splitwith(fun({enumeration,_}) -> true; (_) -> false end, L), group_facets(Rest,[{enumeration,[X||{enumeration,X}<-Enums]}|Acc]); group_facets([H|T],Acc) -> group_facets(T,[H|Acc]); group_facets([],Acc) -> reverse(Acc). simpleType_final(ST,_S) -> Final = get_attribute_value(final,ST,[]), split_by_whitespace(Final,[]). %% A redefine may contain (simpleType | complexType | group | %% attributeGroup)* %%{simpleType,Name},{complexType,Name},{group,Name},{attributeGroup,Name} redefine([CM|Rest],S) -> S2=redefine(CM,S), redefine(Rest,S2); redefine(ST={Type,_Name},S) when Type==simpleType ; Type==complexType -> %% Get the original definition {OriginalType,S2} = resolve(ST,S), %% unnecessary to delete saved object, it will be overwritten. {RedefinedType,S3} = load_redefine_object(ST,S2), {_MergedType,S4} = merge_derived_types(OriginalType,RedefinedType,redefine,S3), S4; redefine(_,S) -> %% attributeGroup and group redefines are already redefined S. keyrefer(keyref,El,S) -> Ref=get_attribute_value(refer,El,undefined), get_QName(Ref,El#xmlElement.namespace,reset_scope(S)); keyrefer(_,_,_) -> undefined. remove_annotation(CM) when is_list(CM) -> [X||X = {K,_} <- CM, K=/=annotation]. remove_attributes(CM) when is_list(CM) -> [X||X = {K,_} <- CM, K=/=attribute,K=/=anyAttribute,K=/=attributeGroup]. keep_attributes(CM) when is_list(CM) -> [X||X = {K,_} <- CM, K==attribute orelse K==anyAttribute orelse K==attributeGroup]. split_content([{restriction,{BaseT,CM}}]) -> {[{restriction,{BaseT,remove_attributes(CM)}}],keep_attributes(CM)}; split_content([{extension,{BaseT,CM}}]) -> {[{extension,{BaseT,remove_attributes(remove_annotation(CM))}}], keep_attributes(CM)}; split_content(CM) -> {remove_attributes(CM),keep_attributes(CM)}. restriction_base_type(R,CM,S) -> case base_type(R) of [] -> case [X||X={simpleType,_}<-CM] of [{simpleType,TypeName}] -> {TypeName,keydelete(simpleType,1,CM),S}; Other -> Err = {error_path(R,R#xmlElement.name),?MODULE, {missing_base_type,restriction,Other}}, {{[],[],[]},CM,acc_errs(S,Err)} end; BT -> {get_QName(BT,R#xmlElement.namespace,reset_scope(S)),CM,S} end. base_type([{restriction,{BaseT,_}}],SCT) -> SCT#schema_complex_type{base_type=BaseT}; base_type([{extension,{BaseT,_}}],SCT) -> SCT#schema_complex_type{base_type=BaseT}; base_type(_,SCT) -> SCT. variety([{list,_ItemType}]) -> list; variety([{union,_ItemType}]) -> union; variety(_) -> atomic. %% pre_check_cm/2 is for now only for simpleContent | complexContent %% which allow content: (annotation?, (restriction | extension)) pre_check_cm(Kind,Cs=[C=#xmlElement{}|RestC],Name,S) -> case kind(C,S) of {annotation,_} -> pre_check_cm2(Kind,RestC,Name,C,S,0); {_,S2} -> pre_check_cm2(Kind,Cs,Name,C,S2,0) end; pre_check_cm(Kind,[_C|Cs],Name,S) -> pre_check_cm(Kind,Cs,Name,S); pre_check_cm(Kind,[],Name,S) -> Err = {[],?MODULE,{content_failure,Kind,[],Name}}, acc_errs(S,Err). pre_check_cm2(Kind,[C=#xmlElement{}|Cs],Name,_El,S,N) -> S2 = case kind(C,S) of {restriction,_} -> S; {extension,_} -> S; {Other,S1} -> Err = {error_path(C,C#xmlElement.name),?MODULE, {illegal_element,Kind,Other,Name}}, acc_errs(S1,Err) end, pre_check_cm2(Kind,Cs,Name,C,S2,N+1); pre_check_cm2(Kind,[_H|T],Name,El,S,N) -> pre_check_cm2(Kind,T,Name,El,S,N); pre_check_cm2(_,[],_,_,S,N) when N==1 -> S; pre_check_cm2(Kind,[],Name,El,S,N) -> Err = case N of 0 -> {error_path(El,El#xmlElement.name),?MODULE, {content_failure_expected_restriction_or_extension, Kind,Name}}; _ -> {error_path(El,El#xmlElement.name),?MODULE, {content_failure_only_one_restriction_or_extension_allowed, Kind,Name}} end, acc_errs(S,Err). %% check_cm(Arg1,Arg2,Arg3) %% Arg1 - The allowed content for this type according to schema for schemas %% Arg2 - The content model of this particular schema check_cm(Kind,S4SCM,ContentModel,S) -> case check_cm2(Kind,S4SCM,ContentModel,S) of {[],_S} -> S; {[_,[]|_],_S} -> S; {_CM,S2} -> S2; Err -> exit({error,{[],?MODULE,{internal_error,Err}}}) end. check_cm2(Kind,#chain{content=S4SCM,occurance=Occ}, ContentModel,S) -> case occurance_loop(Occ,fun check_chain/1, [S4SCM,ContentModel,Kind,S],0) of {ok,[]} -> {[],S}; {ok,[S4SCMRest,CMRest|_]} -> case all_optional(S4SCMRest) of true -> {CMRest,S}; _ -> Err = {[],?MODULE, {mandatory_component_missing,S4SCMRest,Kind}}, acc_errs(S,Err) end; {error,{_,_,Reason}} -> Err = {[],?MODULE,{illegal_content,Reason,Kind}}, {ContentModel,acc_errs(S,Err)} end; check_cm2(Kind,#alternative{content=S4SCM,occurance=Occ}, ContentModel,S) -> case occurance_loop(Occ,fun check_alternative/1, [S4SCM,ContentModel,Kind,S],0) of {ok,[]} -> {[],S}; {ok,[_,CMRest|_]} -> {CMRest,S}; {error,Reason} -> {ContentModel,acc_errs(S,Reason)} end; check_cm2(_,{Kind,Occ},CM,S) -> case occurance_loop(Occ,fun check_simple_cm/1,[Kind,CM],0) of {ok,[]} -> {[],S}; {ok,[_,CMRest|_]} -> {CMRest,S}; {error,Reason} -> {CM,acc_errs(S,Reason)}; Err -> {CM,acc_errs(S,Err)} end. %% check_simple_cm check_simple_cm([Kind,CM]) -> check_simple_cm(Kind,CM). check_simple_cm(Kind,[]) -> {error,{[],?MODULE,{no_match,{Kind,[]}}}}; check_simple_cm(Kind,[{Kind,_}|Rest]) -> {ok,[Kind,Rest]}; check_simple_cm(Kind,[{Other,_}|Rest]) when Kind==simpleType;Kind==complexType -> case Other of simple_or_complex_Type -> {ok,[Kind,Rest]}; _ -> {error,{[],?MODULE,{no_match,Other}}} end; check_simple_cm(_Kind,[{Other,_}|_]) -> {error,{[],?MODULE,{no_match,Other}}}. check_chain([S4SCM,ContentModel,Kind,S]) -> check_chain(Kind,S4SCM,ContentModel,S). check_chain(Kind,[S4SC|S4SCs],ChainCM=[_H|_T], S=#xsd_state{errors=Errs}) -> NewKind = case S4SC of {NK,_} -> NK; _ -> Kind end, case check_cm2(NewKind,S4SC,ChainCM,S) of {ChainCMRest,#xsd_state{errors=Errs}} -> check_chain(Kind,S4SCs,ChainCMRest,S); {_ChainCMRest,_S2} -> case optional(S4SC) of true -> check_chain(Kind,S4SCs,ChainCM,S); _ -> {error,{[],?MODULE,{unmatched_mandatory_object,Kind,S4SC}}} end end; check_chain(Kind,[],CM,S) -> {ok,[[],CM,Kind,S]}; check_chain(Kind,Rest,CM,S) -> case all_optional(Rest) of true -> {ok,[Rest,CM,Kind,S]}; %% or {ok,[[],CM,Kind,S]} _ -> {error,{[],?MODULE,{bad_match,Rest,CM}}} end. check_alternative([S4SC,CM,Kind,S]) -> check_alternative(Kind,S4SC,CM,S). check_alternative(Kind,[S4SC|S4SCs],AltCM = [_H|_T], S=#xsd_state{errors=Err}) -> NewKind = case S4SC of {NK,_} -> NK; _ -> Kind end, case check_cm2(NewKind,S4SC,AltCM,S) of {AltCMRest,#xsd_state{errors=Err}} -> {ok,[[S4SC],AltCMRest,Kind,S]}; {AltCMRest,_S2} -> check_alternative(Kind,S4SCs,AltCMRest,S) end; check_alternative(Kind,[],_AltCM,_S) -> {error,{[],?MODULE,{no_match,Kind}}}. %% occurance_loop keeps track of the right number of elements %% Third argument is a list: [S4SContent,ContentModel] %% returns {ok,Rest} where Rest is the next unmatched abstract %% structure. occurance_loop({Min,Max},_CheckFun,[_,[]|_Rest],N) when Min =< N, Max >= N -> {ok,[]}; occurance_loop(Occ={Min,Max},CheckFun,Args,N) -> Nplus1 = N+1, case CheckFun(Args) of {error,{_,_,{no_match,_}}} when Min =< N, Max >= N -> {ok,Args}; Err = {error,_} -> Err; {ok,Args} -> {error,{[],?MODULE,{no_match,occurance_kind(Args)}}}; {ok,NewArgs} when Nplus1 < Max -> occurance_loop(Occ,CheckFun,NewArgs,Nplus1); Ret = {ok,_NewArgs} -> Ret end. occurance_kind([Kind,_]) -> Kind; occurance_kind([_,_,Kind,_]) -> Kind; occurance_kind(_) -> []. %% if_simple_hd(S4SCM,ConstrCM) %% when is_record(S4SCM,chain);is_record(S4SCM,alternative);is_list(S4SCM) -> %% ConstrCM; %% if_simple_hd(_,[H|_Tl]) -> %% H. %% if_simple_tl(S4SCM,_ConstrCM) %% when is_record(S4SCM,chain);is_record(S4SCM,alternative);is_list(S4SCM) -> %% []; %% if_simple_tl(_,[_|Tl]) -> %% Tl. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% count_occur({Min,Max}) -> % {decrease(Min),decrease(Max)}; {decrease(Min),Max}; count_occur(Other) -> Other. decrease(I) when is_integer(I), I > 0 -> I-1; decrease(I) -> I. decrease_occurance({K,{ID,Occ}}) -> {K,{ID,count_occur(Occ)}}; decrease_occurance(Other) -> Other. get_occur({_,{_,Occ={Min,_}}}) when is_integer(Min) -> Occ; get_occur({_,{_,Occ={Min,_},_}}) when is_integer(Min) -> Occ; get_occur(Other) -> Other. %% remove_whitespace(L=[T=#xmlText{}|Rest]) -> %% case is_whitespace(T) of %% true -> %% remove_whitespace(Rest); %% _ -> L %% end; %% remove_whitespace(L) -> %% L. optional(optional_text) -> true; optional({_,{0,_}}) -> true; optional({_,{_,{0,_}}}) -> true; %% sequence, all or choice optional({any,{_,{0,_},_}}) -> true; optional(#chain{occurance={0,_}}) -> true; optional(#alternative{occurance={0,_}}) -> true; optional(#chain{content=Content}) -> catch is_optional_content(Content); optional(#alternative{content=Content}) -> catch is_optional_content(Content); optional({all,{Content,_}}) -> catch is_optional_content(Content); optional(_) -> false. is_optional_content([H|T]) -> case optional(H) of true -> is_optional_content(T); false -> throw(false) end; is_optional_content([]) -> true. not_optional(X) -> case optional(X) of true -> false; _ -> true end. all_optional([]) -> true; all_optional(L) -> case filter(fun not_optional/1,L) of [] -> true; _ -> false end. %% allowed_content/2 returns a representation of the allowed content %% model for that object allowed_content(element,_Parents) -> #chain{content= [{annotation,{0,1}}, #chain{content= [#alternative{content= [{simpleType,{1,1}},{complexType,{1,1}}], occurance={0,1}}, #alternative{content= [{unique,{1,1}},{key,{1,1}},{keyref,{1,1}}], occurance={0,unbounded}}] }] }; allowed_content(attribute,_Parents) -> #chain{content=[{annotation,{0,1}},{simpleType,{0,1}}]}; allowed_content(complexType,Parents) -> #chain{content= [{annotation,{0,1}}, #alternative{content= [set_occurance(allowed_content(simpleContent,Parents),{1,1}), set_occurance(allowed_content(complexContent,Parents),{1,1}), #chain{content= [#alternative{content= [{group,{1,1}},{all,{1,1}}, {choice,{1,1}},{sequence,{1,1}}], occurance={0,1}}, #chain{content= [#alternative{content= [{attribute,{1,1}}, {attributeGroup,{1,1}}], occurance={0,unbounded}}, {anyAttribute,{0,1}}] } ] } ] } ] }; allowed_content(attributeGroup,Parents) -> case member(simpleContent,Parents) of true -> {annotation,{0,1}}; _ -> #chain{content= [{annotation,{0,1}}, #chain{content= [#alternative{content= [{attribute,{1,1}}, {attributeGroup,{1,1}}], occurance={0,unbounded}}, {anyAttribute,{0,1}}]}]} end; allowed_content(group,_Parents) -> #chain{content= [{annotation,{0,1}}, #alternative{content= [{all,{1,1}},{choice,{1,1}},{sequence,{1,1}}], occurance={0,1}}]}; allowed_content(all,_Parents) -> #chain{content=[{annotation,{0,1}},{element,{0,unbounded}}]}; allowed_content(SorC,_Parents) when SorC==sequence;SorC==choice -> #chain{content= [{annotation,{0,1}}, #alternative{content= [{element,{1,1}},{group,{1,1}}, {choice,{1,1}},{sequence,{1,1}}, {any,{1,1}}], occurance={0,unbounded}}]}; %% allowed_content(E,_Parents) %% when E==any;E==selector;E==field;E==notation;E==include;E==import; %% E==anyAttribute -> %% {annotation,{0,1}}; %% allowed_content(UKK,_Parents) when UKK==unique;UKK==key;UKK==keyref-> %% #chain{content= %% [{annotation,{0,1}}, %% #chain{content= %% [{selector,{1,1}},{selector,{1,unbounded}}]}]}; %% allowed_content(annotation,_Parents) -> %% #alternative{content=[{appinfo,{1,1}},{documentation,{1,1}}], %% occurance={0,unbounded}}; %% allowed_content(E,_Parents) when E==appinfo;E==documentation -> %% {any,{0,unbounded}}; allowed_content(simpleType,_Parents) -> #chain{content= [{annotation,{0,1}}, #alternative{content=[{restriction,{1,1}},{list,{1,1}}, {union,{1,1}}]}]}; allowed_content(restriction,Parents) -> case member(simpleType,Parents) of true -> allowed_content2(restriction,simpleType); _ -> case member(simpleContent,Parents) of true -> allowed_content2(restriction,simpleContent); _ -> allowed_content2(restriction,complexContent) end end; allowed_content(LU,_Parent) when LU==list;LU==union -> #chain{content=[{annotation,{0,1}},{simpleType,{0,1}}]}; %% allowed_content(schema,_) -> %% #chain{content= %% [#alternative{content= %% [{include,{1,1}},{import,{1,1}}, %% {redefine,{1,1}},{annotation,{1,1}}], %% occurance={0,1}}, %% #chain{content= %% [#alternative{content= %% [#alternative{content= %% [{simpleType,{1,1}},{complexType,{1,1}}, %% {group,{1,1}},{attributeGroup,{1,1}}]}, %% {element,{1,1}}, %% {attribute,{1,1}}, %% {notation,{1,1}}]}, %% {annotation,{0,unbounded}}], %% occurance={0,unbounded}}]}; allowed_content(redefine,_Parents) -> #alternative{content= [{annotation,{1,1}}, #alternative{content= [{simpleType,{1,1}},{complexType,{1,1}}, {group,{1,1}},{attributeGroup,{1,1}}]}], occurance={0,unbounded}}; allowed_content(E,_Parents) when E==simpleContent; E==complexContent -> #chain{content= [{annotation,{0,1}}, #alternative{content= [{restriction,{1,1}},{extension,{1,1}}]}]}; allowed_content(extension,Parents) -> case member(simpleContent,Parents) of true -> allowed_content2(extension,simpleContent); _ -> allowed_content2(extension,complexContent) end. %% allowed_content(minExclusive,_Parents) -> %% []; %% allowed_content(minInclusive,_Parents) -> %% []; %% allowed_content(maxExclusive,_Parents) -> %% []; %% allowed_content(maxInclusive,_Parents) -> %% []; %% allowed_content(totalDigits,_Parents) -> %% []; %% allowed_content(fractionDigits,_Parents) -> %% []; %% allowed_content(length,_Parents) -> %% []; %% allowed_content(minLength,_Parents) -> %% []; %% allowed_content(maxLength,_Parents) -> %% []; %% allowed_content(enumeration,_Parents) -> %% []; %% allowed_content(whiteSpace,_Parents) -> %% []; %% allowed_content(pattern,_Parents) -> %% []. allowed_content2(restriction,simpleType) -> #chain{content= [{annotation,{0,1}}, #chain{content= [{simpleType,{0,1}}, #alternative{content= [{minExclusive,{1,1}},{minInclusive,{1,1}}, {maxExclusive,{1,1}},{maxInclusive,{1,1}}, {totalDigits,{1,1}},{fractionDigits,{1,1}}, {length,{1,1}},{minLength,{1,1}}, {maxLength,{1,1}},{enumeration,{1,1}}, {whiteSpace,{1,1}},{pattern,{1,1}}], occurance={0,unbounded}}]}]}; allowed_content2(restriction,simpleContent) -> #chain{content= [{annotation,{0,1}}, #chain{content= [{simpleType,{0,1}}, #alternative{content= [{minExclusive,{1,1}},{minInclusive,{1,1}}, {maxExclusive,{1,1}},{maxInclusive,{1,1}}, {totalDigits,{1,1}},{fractionDigits,{1,1}}, {length,{1,1}},{minLength,{1,1}}, {maxLength,{1,1}},{enumeration,{1,1}}, {whiteSpace,{1,1}},{pattern,{1,1}}], occurance={0,unbounded}}], occurance={0,1}}, #chain{content= [#alternative{content= [{attribute,{1,1}},{attributeGroup,{1,1}}], occurance={0,unbounded}}, {anyAttribute,{0,1}}]}]}; allowed_content2(restriction,complexContent) -> #chain{content= [{annotation,{0,1}}, #alternative{content= [{group,{1,1}},{all,{1,1}},{choice,{1,1}}, {sequence,{1,1}}], occurance={0,1}}, #chain{content= [#alternative{content= [{attribute,{1,1}},{attributeGroup,{1,1}}], occurance={0,unbounded}}, {anyAttribute,{0,1}}]}]}; allowed_content2(extension,simpleContent) -> #chain{content= [{annotation,{0,1}}, #chain{content= [#alternative{content= [{attribute,{1,1}},{attributeGroup,{1,1}}], occurance={0,unbounded}}, {anyAttribute,{0,1}}]}]}; allowed_content2(extension,complexContent) -> #chain{content= [{annotation,{0,1}}, #chain{content= [#alternative{content= [{group,{1,1}},{all,{1,1}},{choice,{1,1}}, {sequence,{1,1}}], occurance={0,1}}, #chain{content= [#alternative{content= [{attribute,{1,1}}, {attributeGroup,{1,1}}], occurance={0,1}}, {anyAttribute,{0,1}}]}]}]}. set_occurance(Ch = #chain{},Occ) -> Ch#chain{occurance=Occ}; set_occurance(Alt = #alternative{},Occ) -> Alt#alternative{occurance=Occ}; set_occurance({Name,_},Occ) when is_atom(Name) -> {Name,Occ}. %% set_occurance(CM,_) -> %% CM. process_external_schema_once(E,Namespace,S) when is_record(E,xmlElement) -> case get_attribute_value(schemaLocation,E,[]) of [] -> Err = {missing_schemalocation_attribute,E#xmlElement.name}, acc_errs(S,Err); Path -> process_external_schema_once(Path,Namespace,S) end; process_external_schema_once(SchemaLocation,Namespace,S) -> case fetch_external_schema(SchemaLocation,S) of {E=#xmlElement{},S2} -> case is_already_processed(Namespace,S2) of true -> save_namespace_definition(Namespace,S2); _ -> S3 = save_namespace_definition(Namespace,S2), traverse_ext_schema(E,S3#xsd_state{targetNamespace=Namespace}) end; {_,S2} -> S2 end. %% process_external_schema/2 returns: %% {ok,some_result()} | {error,reason()} process_external_schema(Path,S) when is_list(Path) -> case fetch_external_schema(Path,S) of {E=#xmlElement{},S2} -> traverse_ext_schema(E,S2); {_,S2} -> S2 end; process_external_schema(absent,S) -> S. fetch_external_schema(Path,S) when is_list(Path) -> FetchFun = S#xsd_state.fetch_fun, %% {ExtXSD,S2} = case FetchFun(Path,S) of {ok,{file,File},_} -> ?debug("scanning file: ~p~n",[File]), case xmerl_scan:file(File,S#xsd_state.xml_options) of {error,Reason} -> {error,acc_errs(S,{[],?MODULE,{parsing_external_schema_failed,File,Reason}})}; {EXSD,_} -> {EXSD,S#xsd_state{schema_name=File}} end; {_,{string,String},_} -> %% this is for a user defined fetch fun that returns an xml document on string format. ?debug("scanning string: ~p~n",[String]), case xmerl_scan:string(String,S#xsd_state.xml_options) of {error,Reason} -> {error,acc_errs(S,{[],?MODULE,{parsing_external_schema_failed,Path,Reason}})}; {EXSD,_} -> {EXSD,S#xsd_state{schema_name=Path}} end; {ok,[],_} -> {ok,S}; {_,Other,_} -> {error,acc_errs(S,{[],?MODULE,{fetch_fun_failed,Other}})} end; fetch_external_schema(absent,S) -> {ok,S}. %% The schema name is also important here because a schema may import %% and must include from the same namespace as the target namespace of %% the including schema. is_already_processed(NameSpace,#xsd_state{schema_name=SchemaName, checked_namespace_nodes=CNS}) -> %% case {keymember(SchemaName,2,CNS),keymember(NameSpace,3,CNS)} of %% {true,true} -> case keysearch(SchemaName,2,CNS) of {_,{_,_,NameSpace}} -> true; _ -> false end. %% save_namespace_definition(NameSpace, S=#xsd_state{targetNamespace=TNS, global_namespace_nodes=GNS, checked_namespace_nodes=CNS}) -> %% 1) Have to find a matching namespace in the global list for %% this schema, and get the associated prefix. 2) Then check %% whether a schema with this prefix - namespace combinaton %% already is checked, if so do nothing. 3a) If this namespace is %% checked but with another prefix only add the prefix - namespace %% pair to the checked namespace list. 3b) Otherwise add the %% prefix - namespace pair. {Prefix,S2} = case keysearch(TNS,1,GNS) of {value,{_,ImportedNodes}} -> case keysearch(NameSpace,2,ImportedNodes) of {value,{_P,_}} -> {_P,S}; _ -> {none,S} end; _ -> Err = {[],?MODULE,{imported_namespace_wo_namespace_definition,NameSpace}}, {none,acc_errs(S,Err)} end, %% Instead of 2, 3a and 3b just add_once case Prefix of none -> S2; _ -> S#xsd_state{checked_namespace_nodes= add_once({Prefix,S#xsd_state.schema_name,NameSpace},CNS)} end. %% prefix_namespace_2global %% adds {Prefix,Namespace} to the global namespace nodes list for the %% targetnamespace. Prefix is the right one found in Nodes. prefix_namespace_2global(Namespace, #xmlNamespace{nodes=Nodes}, S=#xsd_state{targetNamespace=TNS, global_namespace_nodes=GNS}) -> case keysearch(Namespace,2,Nodes) of {value,{Prefix,_}} -> case keysearch(TNS,1,GNS) of {value,{_,DefinedNamespaces}} -> S#xsd_state{global_namespace_nodes= keyreplace(TNS,1,GNS, {TNS,add_once({Prefix,Namespace}, DefinedNamespaces)})}; _ -> S#xsd_state{global_namespace_nodes= [{TNS,[{Prefix,Namespace}|default_namespace_by_convention()]}]} end; _ -> S end; prefix_namespace_2global(_,_,S) -> S. traverse_ext_schema(E,S) -> TargetNS = target_namespace(E), case {TargetNS,S#xsd_state.targetNamespace} of {undefined,_} -> traverse_ext_schema2(E,S); {TNS,TNS} -> traverse_ext_schema2(E,S); _ -> Err = {error_path(E,schema),?MODULE,{illegal_target_namespace_external_schema,E#xmlElement.name}}, acc_errs(S,Err) end. traverse_ext_schema2(E,S) -> S1 = namespace_nodes(E,S), S2 = element_form_default(E,S1), S3 = attribute_form_default(E,S2), S4 = substitution_default(finalDefault,E,S3), S5 = substitution_default(blockDefault,E,S4), {CM,S6} = traverse_content2(E#xmlElement.content,S5,[]), %% ?debug("External schema S6:~n~p~n",[S6]), save_schema_element(CM,S6), S6. attribute_properties([#xmlAttribute{name=default,value=Default}|Rest], Attr,S) -> attribute_properties(Rest,Attr#schema_attribute{default=Default},S); attribute_properties([#xmlAttribute{name=fixed,value=Fixed}|Rest],Attr,S) -> attribute_properties(Rest,Attr#schema_attribute{fixed=Fixed},S); attribute_properties([#xmlAttribute{name=use,value=Use}|Rest],Attr,S) -> {Use2,S2} = attribute_use(Use,S), attribute_properties(Rest,Attr#schema_attribute{use=Use2},S2); attribute_properties([#xmlAttribute{name=form,value=Form}|Rest],Attr,S) -> {Form2,S2} = attribute_form(Form,S), attribute_properties(Rest,Attr#schema_attribute{form=Form2},S2); attribute_properties([#xmlAttribute{name=id,value=ID}|Rest],Attr,S) -> S2 = check_and_save_ID(ID,S), attribute_properties(Rest,Attr#schema_attribute{id=ID},S2); attribute_properties([_H|Rest],Attr,S) -> attribute_properties(Rest,Attr,S); attribute_properties([],Attr,S) -> {Attr,S}. attribute_use(Use,S) when Use=="optional";Use=="prohibited";Use=="required" -> {list_to_atom(Use),S}; attribute_use(Use,S) -> {Use,acc_errs(S,{[],?MODULE,{illegal_use_value,Use}})}. attribute_form(Form,S) when Form=="qualified";Form=="unqualified" -> {list_to_atom(Form),S}; attribute_form(Form,S) -> {Form,acc_errs(S,{[],?MODULE,{illegal_form_value,Form}})}. element_properties([#xmlAttribute{name=default,value=Default}|Rest],SE,El,S) -> case SE#schema_element.value_constraint of {fixed,_} -> Err = {error_path(El,schema),?MODULE,{"only one of final/default attributes allowed", El#xmlElement.name}}, element_properties(Rest,SE,El,acc_errs(S,Err)); _ -> element_properties(Rest,SE#schema_element{value_constraint= {default,Default}},El,S) end; element_properties([#xmlAttribute{name=fixed,value=Fixed}|Rest],SE,El,S) -> case SE#schema_element.value_constraint of {default,_} -> Err = {error_path(El,schema),?MODULE, {"only one of final/default attributes allowed", El#xmlElement.name}}, element_properties(Rest,SE,El,acc_errs(S,Err)); _ -> element_properties(Rest,SE#schema_element{value_constraint= {fixed,Fixed}},El,S) end; element_properties([#xmlAttribute{name=substitutionGroup,value=SG}|Rest], SE,El,S) -> SGName = get_QName(SG,El#xmlElement.namespace,reset_scope(S)), element_properties(Rest,SE#schema_element{substitutionGroup=SGName},El, add_ref(S,{element,SGName})); element_properties([#xmlAttribute{name=form,value=F}|Rest],SE,El,S) -> {Form,S2} = attribute_form(F,S), element_properties(Rest,SE#schema_element{form=Form},El,S2); element_properties([#xmlAttribute{name=id,value=ID}|Rest],SE,El,S) -> S2 = check_and_save_ID(ID,S), element_properties(Rest,SE#schema_element{id=ID},El,S2); element_properties([#xmlAttribute{name=nillable,value=N}|Rest],SE,El,S) -> case boolean_to_atom(N) of error -> element_properties(Rest,SE,El, acc_errs(S,{error_path(El,schema),?MODULE,{illegal_nillable_value,N}})); N_atom -> element_properties(Rest,SE#schema_element{nillable=N_atom},El,S) end; element_properties([#xmlAttribute{name=abstract,value=A}|Rest],SE,El,S) -> case boolean_to_atom(A) of error -> element_properties(Rest,SE,El, acc_errs(S,{error_path(El,schema),?MODULE,{illegal_abstract_value,A}})); A_atom -> element_properties(Rest,SE#schema_element{abstract=A_atom},El,S) end; element_properties([#xmlAttribute{name=block,value=B}|Rest],SE,El,S) -> BlockValues = split_by_whitespace(B,[]), case legal_block_values(element,BlockValues) of {error,Reason} -> element_properties(Rest,SE,El, acc_errs(S,{error_path(El,schema),?MODULE,{illegal_block_values,Reason}})); _ -> element_properties(Rest,SE#schema_element{block=BlockValues},El,S) end; element_properties([#xmlAttribute{name=final,value=F}|Rest],SE,El,S) -> FinalValues = split_by_whitespace(F,[]), case legal_final_values(element,FinalValues) of {error,Reason} -> element_properties(Rest,SE,El, acc_errs(S,{error_path(El,schema),?MODULE,{illegal_final_values,Reason}})); _ -> element_properties(Rest,SE#schema_element{final=FinalValues},El,S) end; element_properties([_H|T],SE,El,S) -> element_properties(T,SE,El,S); element_properties([],SE,_El,S) -> {SE,S}. %% 3.3.3 bullet 2.2 %% nillable, default, fixed, form, block and type properties must be %% absent in element with ref. element_forbidden_properties(El,S) -> element_forbidden_properties(El#xmlElement.attributes,El,S). element_forbidden_properties([#xmlAttribute{name=nillable,value=V}|Atts],El,S) -> element_forbidden_properties(Atts,El,acc_errs(S,{error_path(El,schema),?MODULE,{forbidden_property,nillable,V}})); element_forbidden_properties([#xmlAttribute{name=default,value=V}|Atts],El,S) -> element_forbidden_properties(Atts,El,acc_errs(S,{error_path(El,schema),?MODULE,{forbidden_property,default,V}})); element_forbidden_properties([#xmlAttribute{name=fixed,value=V}|Atts],El,S) -> element_forbidden_properties(Atts,El,acc_errs(S,{error_path(El,schema),?MODULE,{forbidden_property,fixed,V}})); element_forbidden_properties([#xmlAttribute{name=form,value=V}|Atts],El,S) -> element_forbidden_properties(Atts,El,acc_errs(S,{error_path(El,schema),?MODULE,{forbidden_property,form,V}})); element_forbidden_properties([#xmlAttribute{name=block,value=V}|Atts],El,S) -> element_forbidden_properties(Atts,El,acc_errs(S,{error_path(El,schema),?MODULE,{forbidden_property,block,V}})); element_forbidden_properties([#xmlAttribute{name=type,value=V}|Atts],El,S) -> element_forbidden_properties(Atts,El,acc_errs(S,{error_path(El,schema),?MODULE,{forbidden_property,type,V}})); element_forbidden_properties([#xmlAttribute{}|Atts],El,S) -> element_forbidden_properties(Atts,El,S); element_forbidden_properties([],_,S) -> S. %% 3.3.3 bullet 2.2 %% complexType, simpleType, key, keyref and unique must be absent in %% element with ref. element_forbidden_content([],S) -> S; element_forbidden_content([El=#xmlElement{}|Els],S) -> case kind(El) of K when K==complexType;K==simpleType;K==key;K==keyref;K==unique -> acc_errs(S,{error_path(El,schema),?MODULE,{element_content_must_not_contain,K,El}}); annotation -> element_forbidden_content(Els,S); Other -> acc_errs(S,{error_path(El,schema),?MODULE,{illegal_element_content,Other}}) end; element_forbidden_content([T=#xmlText{}|Rest],S) -> case is_whitespace(T) of true -> element_forbidden_content(Rest,S); _ -> acc_errs(S,{error_path(T,schema),?MODULE,{illegal_element_content,T}}) end. c_t_properties(El,CT,S) -> c_t_properties(El#xmlElement.attributes,El,CT,S). c_t_properties([#xmlAttribute{name=final,value=V}|Rest],El,CT,S) -> FinalValues = split_by_whitespace(V,[]), case legal_final_values(complexType,FinalValues) of {error,Reason} -> Err = {error_path(El,schema),?MODULE,{illegal_final_values,Reason}}, c_t_properties(Rest,El,CT,acc_errs(S,Err)); _ -> c_t_properties(Rest,El, CT#schema_complex_type{final=FinalValues},S) end; c_t_properties([#xmlAttribute{name=block,value=V}|Rest],El,CT,S) -> BlockValues = split_by_whitespace(V,[]), case legal_block_values(complexType,BlockValues) of {error,Reason} -> Err = {error_path(El,schema),?MODULE, {illegal_block_values,Reason}}, c_t_properties(Rest,El,CT,acc_errs(S,Err)); _ -> c_t_properties(Rest,El,CT#schema_complex_type{block=BlockValues},S) end; c_t_properties([#xmlAttribute{name=abstract,value=V}|Rest],El,CT,S) -> case boolean_to_atom(V) of error -> Err = {error_path(El,schema),?MODULE, {illegal_abstract_value,V}}, c_t_properties(Rest,El,CT,acc_errs(S,Err)); V_atom -> c_t_properties(Rest,El,CT#schema_complex_type{abstract=V_atom},S) end; c_t_properties([_H|T],El,CT,S) -> c_t_properties(T,El,CT,S); c_t_properties([],_,CT,S) -> {CT,S}. legal_block_values(_,['#all']) -> true; legal_block_values(element,BlockValues) -> list_members(BlockValues,[extension,restriction,substitution]); legal_block_values(complexType,BlockValues) -> list_members(BlockValues,[extension,restriction]). legal_final_values(_,['#all']) -> true; legal_final_values(_,FinalValues) -> list_members(FinalValues,[extension,restriction]). boolean_to_atom(B) when B=="1";B=="true" -> true; boolean_to_atom(B) when B=="0";B=="false" -> false; boolean_to_atom(_) -> error. count_num_el(S=#xsd_state{num_el=N}) -> S#xsd_state{num_el=N+1}. set_num_el(S=#xsd_state{},I) when is_integer(I) -> S#xsd_state{num_el=I}; set_num_el(S=#xsd_state{},#xsd_state{num_el=I}) -> S#xsd_state{num_el=I}. occurance(El=#xmlElement{attributes=Atts},{Min,Max},S) -> AttVal=fun(#xmlAttribute{value=V},Sin) -> case catch mk_int_or_atom(V) of {'EXIT',_} -> Err = {error_path(El,schema),?MODULE, {illegal_occurance_value,V}}, {V,acc_errs(Sin,Err)}; IAV -> {IAV,Sin} end; (V1,Sin) -> {V1,Sin} end, {MinVal,S2} = AttVal(keyNsearch(minOccurs,#xmlAttribute.name, Atts,Min),S), {MaxVal,S3} = AttVal(keyNsearch(maxOccurs,#xmlAttribute.name, Atts,Max),S2), {{MinVal,MaxVal},S3}. mk_int_or_atom(V="unbounded") -> list_to_atom(V); mk_int_or_atom(V) when is_list(V) -> list_to_integer(V); mk_int_or_atom(V) -> V. %% E is a complexType, possible kind of content is A)simpleContent, B) %% complexContent or C) one or zero of 1)group,2)all,3)choice or %% 4)sequence, followed by any number of attribute or attributeGroup %% and finally one optional anyAttribute mixed(E=#xmlElement{content=C},S) -> case {get_attribute_value(mixed,E,undefined), [Y||Y=#xmlElement{}<-C,kind(Y)==simpleContent]} of {_,[_SCE]} -> {false,S}; %% mixed is false in simpleContent {undefined,_} -> case [X||X=#xmlElement{}<-C, kind(X)==complexContent] of [E2] -> %% {get_attribute_value(mixed,E2,false),S}; mixed(E2,S); _ -> {false,S} end; {M,_} when M=="1";M=="true" -> {true,S}; {M,_} when M=="0";M=="false" -> {false,S}; {M,_} -> Err = {error_path(E,schema),?MODULE,{invalid_mixed_value,M}}, {false,acc_errs(S,Err)} end. mixify(false,CM) -> CM; mixify(true,CM) -> mixify2(CM,[optional_text]). mixify2([],Acc) -> reverse(Acc); mixify2([H|T],Acc) -> mixify2(T,[optional_text,H|Acc]). complexity([]) -> undefined; complexity([#xmlText{}|T]) -> complexity(T); complexity([#xmlComment{}|T]) -> complexity(T); complexity([H|T]) -> case kind(H) of simpleContent -> simple; complexContent -> complex; _ -> complexity(T) end. %% Validation takes care of the following: %% 1) a) Check that targetNamespace attribute in schema matches %% namespace URI if the element. %% b) If schema don't have a targetNamespace the instance element %% must not be namespace-qualified %% 2) a) Examine type of the element according to the schema and block %% attributes in the element decl. %% b) Default values and other infoset contributions are applied. %% 3) Check the immediate attributes and contents of the element %% comparing these against the attributes and contents %% permitted. %% a) simple type: %% -verify there are no attributes or elements. %% -verify character content matches rules for type. %% b) complex type: %% -verify attributes present and values ok. %% -check subelements according to content model. %% validate_xml/2 validate_xml(El = #xmlElement{name=Name}, S=#xsd_state{table=Tab,schemaLocations=SchemaLocations}) -> ElQName = {_,_,Namespace} = mk_EII_QName(Name,El,S), SchemaCM = get_schema_cm(Tab,Namespace), case [X||X={element,{QName,Occ}} <- SchemaCM#schema.content, cmp_name(ElQName,QName,S), at_least_one(Occ)] of [Obj] -> {Object,S2} = load_object(Obj,S), validate_xml(El,Object,S2); _ -> %% In case the namespace in El is not processed even %% though it is present. case is_already_processed(Namespace,S) of true -> %% nothing more to do {error,{error_path(El,Name),?MODULE, {element_not_in_schema,[Name,ElQName,SchemaCM]}}}; _ -> case keysearch(if_atom_to_list(Namespace),1,SchemaLocations) of {value,{_,Location}} -> %% namespace present by schemaLocation %% attribute in instance. S1 = prefix_namespace_2global(Namespace,El#xmlElement.namespace,S), S2 = save_namespace_definition(Namespace,S1), S3 = process_external_schema(Location,S2#xsd_state{targetNamespace=Namespace}), validate_xml(El,S3); _ -> %% namespace not imported in schema or instance. {error,{error_path(El,Name),?MODULE, {element_not_in_schema,[Name,ElQName,SchemaCM]}}} end end end. %% validate_xml/3 validate_xml(XMLEl=#xmlElement{},SEl=#schema_element{},S) -> %% check that targetNamespace of schema matches URI of the element. case check_target_namespace(XMLEl,S) of ok -> %% Extract the schemaLocation links in the instance, %% examine type of the element according to the schema and %% the block attributes in the element declaration S2 = schemaLocations(XMLEl,S), ?debug("schemaLocations: ~p~n",[S2#xsd_state.schemaLocations]), #schema_element{name=_Name,type=_Type,block=Bl} = SEl, Block = blocking(Bl,S2#xsd_state.blockDefault), %% complex types, elements Ret = check_element_type([XMLEl],SEl,[],Block,S2,[]), case Ret of {ValXML,UnvalRest,S3} -> %% S4 = schema_concistence_checks(S3), {ValXML,UnvalRest,S3}; _ -> Ret end; _ -> Err = {error_path(XMLEl,XMLEl#xmlElement.name),?MODULE, {target_namespace_missmatch}}, {XMLEl,[],acc_errs(S,Err)} end. %% check_element_type/3 %% examine type according to schema including info of block %% attributes. If complex type do test recursively %% 2 often check_element_type(XML=[XMLTxt=#xmlText{}|Rest],CM=[CMEl|CMRest],Env, Block,S,Checked) -> %% XMLTxt is the first part of the elements content, %% CMEl is the allowed type according to the schema case is_whitespace(XMLTxt) of true -> %% Ignore XMLEl check_element_type(Rest,CM,Env,Block,S,[XMLTxt|Checked]); _ -> %% CMEl allows optional_text or is an absent optional element {ResolvedT,S2} = resolve(CMEl,S), case check_text_type(XML,ResolvedT,S2) of {error,Reason} -> case is_optional(CMEl,S) of true -> check_element_type(XML,CMRest,Env,Block,S,Checked); _ -> check_element_type(Rest,CM,Env,Block, acc_errs(S,Reason),Checked) end; {Ret,Rest2,S3} -> check_element_type(Rest2,CMRest,Env,Block,S3,reverse(Ret,Checked)) end end; %% If CMEl is a sequence more than the first element of the XML list %% may match. check_element_type(XML=[#xmlElement{}|_],[{sequence,{CM,Occ}}|_CMRest], Env,_Block,S,Checked) -> ?debug("calling sequence/6~n",[]), check_sequence(XML,CM,Occ,Env,set_num_el(S,0),Checked); check_element_type(XML=[#xmlElement{}|_],[{choice,{CM,Occ}}|_CMRest], Env,_Block,S,Checked) -> ?debug("calling choice/6~n",[]), check_choice(XML,CM,Occ,Env,set_num_el(S,0),Checked); check_element_type(XML=[#xmlElement{}|_],[{all,{CM,Occ}}|_CMRest], Env,_Block,S,Checked) -> ?debug("calling choice/6~n",[]), check_all(XML,CM,Occ,Env,set_num_el(S,0),Checked,XML); %%LTH %% 3 often. CMEL may be ((simpleType | complexType)?, (unique | key | keyref)*)) check_element_type(XML=[XMLEl=#xmlElement{}|_],[CMEl|CMRest],Env, Block,S,Checked) -> %% Three possible releations between XMLEl - CMEl: %% (1) XMLEl matches CMEl. %% (2) XMLEl don't matches CMEl and CMEl is optional. %% (3) XMLEl don't matches CMEl, CMEl mandatory, - error. %% On the other side may CMEl also match more elements in %% Rest. This should come down to 2) next function call. {ResolvedT,S2} = resolve(CMEl,S), case check_element_type(XML,ResolvedT,Env,Block,S2,[]) of {error,Reason} -> % 3 check_element_type(tl(XML),CMRest,Env,Block, acc_errs(S,Reason),[XMLEl|Checked]); {[],_,_} -> % 2 check_element_type(XML,CMRest,Env,Block,S,Checked); {XMLEl2,RestXML,S3} -> % 1 This return value does not conform to the others check_element_type(RestXML,[decrease_occurance(CMEl)|CMRest],Env, Block,S3,XMLEl2++Checked) end; check_element_type([],[],_Env,_Block,S,Checked) -> {Checked,[],S}; check_element_type([],[CMEl|CMRest],Env,Block,S,Checked) -> case is_optional(CMEl,S) of true -> check_element_type([],CMRest,Env,Block,S,Checked); _ -> Err = {error_path(Checked,undefined),?MODULE, {missing_mandatory_element,CMEl}}, {Checked,[],acc_errs(S,Err)} end; check_element_type(_XML=[], #schema_complex_type{name=_Name,base_type=BT, complexity=simple, content=_C} = CT, _Env,_Block,S,Checked) -> %% maybe check attributes here as well. {ResolvedType,_} = resolve({simple_or_complex_Type,BT},S), case ResolvedType of #schema_simple_type{} -> {NewVal,S2} = check_type(ResolvedType,[],unapplied,S), {NewVal,[],S2}; {simpleType,_} -> {NewVal,S2} = check_type(ResolvedType,[],unapplied,S), {NewVal,[],S2}; _ -> {error,{error_path(Checked,undefined),?MODULE, {empty_content_not_allowed,CT}}} end; check_element_type([],#schema_complex_type{name=_Name,block=_Bl,content=C}, _Env,_Block,S,Checked) -> %% This type must have an empty content to be valid case allow_empty_content(C) of true -> {[],[],S}; false -> {error,{error_path(Checked,undefined),?MODULE, {empty_content_not_allowed,C}}} end; check_element_type(C, {anyType, _}, _Env, _Block, S, _Checked) -> %% permitt anything {lists:reverse(C), [], S}; check_element_type(XML=[#xmlText{}|_],Type=#schema_simple_type{}, _Env,_Block,S,_Checked) -> check_text_type(XML,Type,S); check_element_type(XML=[#xmlText{}|_],Type={simpleType,_NameNS}, _Env,_Block,S,_Checked) -> check_text_type(XML,Type,S); check_element_type(XML=[#xmlText{}|_], #schema_complex_type{name=_Name,base_type=BT, complexity=simple, content=_C},Env,Block,S,Checked) -> %% maybe check attributes here as well. {ResolvedType,_} = resolve({simple_or_complex_Type,BT},S), check_element_type(XML,ResolvedType,Env,Block,S,Checked); %% single schema object check_element_type(XML=[_H|_], #schema_complex_type{name=Name,block=Bl,content=C}, Env,_Block,S,Checked) -> EnvName = case Name of {LN,_Scope,_NS} -> LN; _ -> anonymous end, Block = blocking(Bl,S#xsd_state.blockDefault), check_element_type(XML,C,[EnvName|Env],Block,name_scope(Name,S),Checked); %% 1 check_element_type(XML=[XMLEl=#xmlElement{name=Name}|RestXML], CMEl=#schema_element{name=CMName,type=Type}, Env,Block,S,Checked) -> ElName = mk_EII_QName(Name,XMLEl,S#xsd_state{scope=element(2,CMName)}), {Min,Max} = CMEl#schema_element.occurance, case cmp_name(ElName,CMName,S) of %% substitutionGroup true when S#xsd_state.num_el =< Max -> S1 = id_constraints(CMEl,XMLEl,S), %% If CMEl element has a substitutionGroup we have to %% switch to the rigth element and type here. {CMEl2,Type2,S2} = if ElName =:= CMName -> {CMEl,Type,S1}; true -> case resolve({element,ElName},S1) of {SESub=#schema_element{type=SubType},Ssub} -> {SESub,SubType,Ssub}; {_,Ssub} -> {CMEl,Type,Ssub} end end, {ResolvedType,S3} = resolve(Type2,XMLEl,S2), %% What's the value of Resolve?: It must be a simpleType, %% complexType or an identity-constraint object XsiFactors = xsi_factors(CMEl2), {XMLEl2,S4} = check_attributes(XMLEl,ResolvedType, XsiFactors,S3), S5 = check_abstract(ElName,XMLEl,CMEl,S4), S6 = check_form(ElName,Name,XMLEl, actual_form_value(CMEl#schema_element.form, S5#xsd_state.elementFormDefault), S5), %Step into content of XML element. {Content,_,S7} = case check_element_type(XMLEl2#xmlElement.content, ResolvedType,Env, Block,S6,Checked) of {error,Reason} -> {XMLEl2#xmlElement.content,[],acc_errs(S6,Reason)}; Result ={_,[],_} -> Result; {_,UnexpectedRest,_} -> Err = {error_path(XMLEl,Name),?MODULE, {unexpected_rest,UnexpectedRest}}, {XMLEl2#xmlElement.content,[], acc_errs(S6,Err)} end, {[XMLEl2#xmlElement{content=reverse(Content)}], RestXML, set_scope(S5#xsd_state.scope,set_num_el(S7,S6))}; true -> {error,{error_path(XMLEl, Name), ?MODULE, {element_not_suitable_with_schema, ElName, S}}}; _ when S#xsd_state.num_el >= Min -> %% it may be a match error or an optional element not %% present {[], XML, S#xsd_state{num_el=0}}; _ -> {error,{error_path(XMLEl,Name),?MODULE, {element_not_suitable_with_schema,ElName,CMName,CMEl,S}}} end; check_element_type(XML,#schema_group{content=[CM]},Env,Block,S,Checked) -> %% content may contain one of all | choice | sequence or empty check_element_type(XML,CM,Env,Block,S,Checked); check_element_type(XML,#schema_group{content=[]},_Env,_Block,_S,_Checked) -> {error,{error_path(XML,undefined),?MODULE,{no_element_expected_in_group,XML}}}; check_element_type(XML=[#xmlElement{content=_Content}|_Rest], {sequence,{Els,Occ}},Env,_Block,S,Checked) -> ?debug("calling sequence/6~n",[]), case check_sequence(XML,Els,Occ,Env,S#xsd_state{num_el=0},Checked) of Err = {error,_} -> Err; {ValidContent,Rest2,S2} -> %% The sequence may consume more than one element %%{ValidContent,Rest,acc_errs(S2,{sequence_unexpected_rest_objects,UnexpRest})} {ValidContent,Rest2,S2} end; check_element_type(XML=[#xmlElement{}|_Rest], {choice,{Els,Occ}},Env,_Block,S,Checked) -> ?debug("calling choice/6~n",[]), case check_choice(XML,Els,Occ,Env,S#xsd_state{num_el=0},Checked) of Err = {error,_} -> Err; {ValidContent,Rest2,S2} -> %% The choice may consume more than one element {ValidContent,Rest2,S2} end; check_element_type(XML=[E=#xmlElement{name=Name}|Rest], Any={any,{Namespace,_Occ={Min,_},ProcessorContents}},Env, _Block,S,_Checked) -> ?debug("check any: {any,{~p,~p,~p}}~n",[Namespace,_Occ,ProcessorContents]), %% ProcessorContents any of lax | strict | skip %% lax: may validate if schema is found %% strict: must validate ElName = mk_EII_QName(Name,E,S), case cmp_any_namespace(ElName,Namespace,S) of true -> case ProcessorContents of skip -> {[E],Rest,S}; lax -> {[E],Rest,S}; %% strict when Namespace==['##local'] -> strict -> case member(absent,Namespace) of true -> %% unqualified well-formed xml is required. The %% xml is well-formed, check that it is %% unqualified. Traverse = fun(#xmlElement{nsinfo=[], attributes=Atts, content=C}, Sin,Fun) -> Sin2 = Fun(Atts,Sin,Fun), Fun(C,Sin2,Fun); (#xmlAttribute{namespace=[]},Sin,_Fun) -> Sin; (#xmlText{},Sin,_Fun) -> Sin; ([H|T],Sin,Fun) -> Sin2 = Fun(H,Sin,Fun), Fun(T,Sin2,Fun); ([],Sin,_Fun) -> Sin; (El,Sin,_Fun) -> Err = {error_path(E,Name),?MODULE, {illegal_component_in_any,El}}, acc_errs(Sin,Err) end, S2 = Traverse(E,S,Traverse), {[E],Rest,S2}; _ -> {Result,S2}=check_any(E,Any,Env,S), {[Result],Rest,S2} end end; false when S#xsd_state.num_el >= Min -> {[],XML,S}; _ -> {error,{error_path(E,Name),?MODULE,{element_bad_match,E,Any,Env}}} end; check_element_type([],CM,_Env,_Block,S,Checked) -> %% #schema_complex_type, any, #schema_group, anyType and lists are %% catched above. case CM of #schema_simple_type{} -> {NewVal,S2} = check_type(CM,[],unapplied,S), {NewVal,[],S2}; {simpleType,_} -> {NewVal,S2} = check_type(CM,[],unapplied,S), {NewVal,[],S2}; _ -> {error,{error_path(Checked,undefined),?MODULE, {empty_content_not_allowed,CM}}} end; check_element_type([C = #xmlComment{} |Rest],CM,Env,Block,S,Checked) -> check_element_type(Rest,CM,Env,Block,S,[C |Checked]); check_element_type(XML,CM,_Env,_Block,S,_Checked) -> {error,{error_path(XML,undefined),?MODULE,{match_failure,XML,CM,S}}}. %% single xml content object and single schema object check_text_type(XML=[#xmlText{}|_],optional_text,S) -> % {XMLTxt,optional_text}; {XMLText,Rest} = split_xmlText(XML), {XMLText,Rest,S}; check_text_type(XML=[Txt=#xmlText{}|_],Type={simpleType,_},S) -> {XMLText,Rest} = split_xmlText(XML), {NewVal,S2}=check_type(Type,flatten([X||#xmlText{value=X}<-XMLText]),unapplied,S), {[Txt#xmlText{value=NewVal}],Rest,S2}; check_text_type(XML=[Txt=#xmlText{}|_],Type=#schema_simple_type{},S) -> {XMLText,Rest} = split_xmlText(XML), {NewVal,S2}=check_type(Type,flatten([X||#xmlText{value=X}<-XMLText]),unapplied,S), {[Txt#xmlText{value=NewVal}],Rest,S2}; check_text_type([XMLTxt=#xmlText{}|_],CMEl,_S) -> {error,{error_path(XMLTxt,undefined),?MODULE, {cannot_contain_text,XMLTxt,CMEl}}}. split_xmlText(XML) -> splitwith(fun(#xmlText{}) -> true;(#xmlComment{}) -> true;(_) -> false end,XML). %% Sequence check_sequence([T=#xmlText{}|Rest],Els,Occ,Env,S,Checked) -> check_sequence(Rest,Els,Occ,Env,S,[T|Checked]); check_sequence(Seq=[_InstEl=#xmlElement{}|_],[El|Els],Occ={_Min,_Max},Env,S,Checked) -> %% El any of (element | group | choice | sequence | any)* {ResolvedT,S2} = resolve(El,S), case check_element_type(Seq,ResolvedT,Env,[],count_num_el(S2),[]) of {[],_,S3} -> %% An optional element not present or maybe content == []. case is_optional(El,S3) of true -> check_sequence(Seq,Els,Occ,Env,set_num_el(S3,0),Checked); _ -> {error,{error_path(Checked,undefined),?MODULE, {missing_mandatory_elements,El}}} end; Err={error,_Reason} -> case {is_optional(El,S),S#xsd_state.num_el,get_occur(El)} of {true,_,_} -> check_sequence(Seq,Els,Occ,Env,set_num_el(S,0),Checked); {_,N,{_Min2,Max}} when N>=Max -> check_sequence(Seq,Els,Occ,Env,set_num_el(S,0),Checked); _ -> Err end; %% {error,_Reason} when Min==0 -> %% optional element %% {[],Seq,S}; %% {Checked,Seq,S} %% {error,_Reason} when S#xsd_state.num_el >= Max -> %% %% This failure because of number limit %% {Checked,Seq,S}; %% Err = {error,_Reason} -> %% %% Even though this match failed %% Err; {Ret,UnValRest,S3} -> %% must also take care of more elements of same name %% decrease occurance in El for the optional measurements %% when Seq is empty. check_sequence(UnValRest,[decrease_occurance(El)|Els],Occ,Env, count_num_el(set_num_el(S3,S2)), Ret++Checked) end; check_sequence([C = #xmlComment{} |Rest], Els, Occ, Env, S, Checked) -> check_sequence(Rest,Els,Occ,Env,S,[C |Checked]); check_sequence(Rest,[],_Occ,_Env,S,Checked) -> {Checked,Rest,set_num_el(S,0)}; check_sequence([],Els,_Occ,_Env,S,Checked) -> case [X||X={_,Y={_,_}} <- Els,optional(Y)==false] of [] -> {Checked,[],set_num_el(S,0)}; MandatoryEls -> {error,{error_path(Checked,undefined),?MODULE, {missing_mandatory_elements,MandatoryEls}}} end. %%check_sequence(Seq,[],_Occ,_Env,_S,_Checked) -> %%{error,{unmatched_elements,Seq}}. %% Choice one alternative must occur unless all alternatives are %% optional or the entire choice is optional. check_choice([T=#xmlText{}|Rest],Els,Occ,Env,S,Checked) -> case is_whitespace(T) of true -> check_choice(Rest,Els,Occ,Env,S,[T|Checked]); _ -> {error,{error_path(T,undefined),?MODULE, {choice_missmatch,T,Els}}} end; check_choice(Ch=[#xmlElement{}|_],[El|Els],Occ,Env,S,Checked) -> {ResolvedT,S2} = resolve(El,S), case check_element_type(Ch,ResolvedT,Env,[],count_num_el(S2),[]) of {[],_,_S3} -> %% not matched optional element check_choice(Ch,Els,Occ,Env,S2,Checked); {error,_Reason} -> %% This may happen but not for the %% last alternative element unless the %% entire choice is optional. So, just %% continue. case [X||X=#xmlElement{}<-Checked] of [] -> check_choice(Ch,Els,Occ,Env,S2,Checked); _ -> {Checked,Ch,set_num_el(S,0)} end; {Result,UnValRest,S3} -> %% in this case only more elements of %% El may be allowed check_choice(UnValRest,[El],Occ,Env, count_num_el(set_num_el(S3,S)),Result++Checked) end; check_choice([],_,_,_,S,Checked) -> {Checked,[],set_num_el(S,0)}; check_choice(XML,[],{0,_},_,S,Checked) -> %% Choice is optional {Checked,XML,set_num_el(S,0)}; check_choice(XML,[],_,_,S,Checked) -> %% Choice has already matched something, the rest is for somthing %% else to match. case S#xsd_state.num_el > 0 of true -> {Checked,XML,set_num_el(S,0)}; _ -> {error,{error_path(XML,undefined),?MODULE, {no_element_matching_choice,XML}}} end. check_all([T=#xmlText{}|RestXML],CM,Occ,Env,S,Checked,XML) -> case is_whitespace(T) of true -> check_all(RestXML,CM,Occ,Env,S,[T|Checked],XML); _ -> {error,{error_path(T,undefined),?MODULE,{all_missmatch,T,CM}}} end; check_all(XML=[E=#xmlElement{name=Name}|RestXML],CM,Occ,Env,S, Checked,PrevXML) -> ElName = mk_EII_QName(Name,E,S), case search_delete_all_el(ElName,CM,S) of {CMEl={element,_},RestCM} -> {ResolvedT,S2} = resolve(CMEl,S), case check_element_type(XML,ResolvedT,Env,[],S2,[]) of {[],_,_S3} -> Err = {error_path(E,Name),?MODULE, {validation_error_all,ElName,CM}}, check_all(RestXML,CM,Occ,Env,acc_errs(S,Err), Checked,PrevXML); {error,_} when element(1,Occ)==0 -> {[],PrevXML,S}; {error,Reason} -> check_all(RestXML,RestCM,Occ,Env, acc_errs(S,Reason),[E|Checked],PrevXML); {Result,UnValRest,S3} -> check_all(UnValRest,RestCM,Occ,Env, S3#xsd_state{scope=S#xsd_state.scope}, Result++Checked,PrevXML) end; _ when element(1,Occ) == 0 -> {[],PrevXML,S}; _ -> Err = {error_path(E,Name),?MODULE, {element_not_in_all,ElName,E,CM}}, check_all(RestXML,CM,Occ,Env,acc_errs(S,Err),[E|Checked],PrevXML) end; check_all([C=#xmlComment{} |RestXML], CM, Occ, Env, S, Checked, XML) -> check_all(RestXML, CM, Occ, Env, S, [C |Checked], XML); check_all(XML,[],_,_,S,Checked,_) -> {Checked,XML,S}; check_all([],CM,_Occ,_,S,Checked,_PrevXML) -> case [X||X={_,Y={_,_}} <- CM,optional(Y)==false] of [] -> {Checked,[],set_num_el(S,0)}; MandatoryEls -> {error,{error_path(Checked,undefined),?MODULE, {missing_mandatory_elements_in_all,MandatoryEls}}} end. check_any(E,Any,_Env,S) -> case catch validate_xml(E,S#xsd_state{scope=[]}) of {[Result],[],S2} -> {Result,S2#xsd_state{scope=S#xsd_state.scope}}; {Result,[],S2} -> {Result,S2#xsd_state{scope=S#xsd_state.scope}}; {_,_Unvalidated,S2} -> Err = {error_path(E,undefined),?MODULE,{failed_validating,E,Any}}, {E,acc_errs(S2#xsd_state{scope=S#xsd_state.scope},Err)}; {error,Reason} -> {E,acc_errs(S,Reason)}; {'EXIT',Reason} -> %% {E,acc_errs(S,format_error({internal_error,Reason},E,Any,Env))} Err = {error_path(E,undefined),?MODULE,{internal_error,Reason}}, {E,acc_errs(S,Err)} end. check_target_namespace(XMLEl,S) -> case {S#xsd_state.targetNamespace,XMLEl#xmlElement.nsinfo} of {undefined,[]} -> ok; {URI,{Prefix,_}} -> NS = XMLEl#xmlElement.namespace, case namespace(Prefix,NS,NS#xmlNamespace.default) of URI -> ok; _ -> failed end; {URI,_} -> case (XMLEl#xmlElement.namespace)#xmlNamespace.default of URI -> ok; _ -> failed end end. schemaLocations(El=#xmlElement{attributes=Atts},S) -> Pred = fun(#xmlAttribute{name=schemaLocation}) -> false; (#xmlAttribute{nsinfo={_,"schemaLocation"}}) -> false; (_) -> true end, case lists:dropwhile(Pred,Atts) of [] -> S; [#xmlAttribute{value=Paths}|_] -> case string:tokens(Paths," \n\t\r") of L when length(L) > 0 -> case length(L) rem 2 of 0 -> PairList = fun([],_Fun) -> []; ([SLNS,SLLoc|Rest],Fun) -> [{SLNS,SLLoc}|Fun(Rest,Fun)] end, S#xsd_state{schemaLocations=PairList(L,PairList)}; _ -> Err = {error_path(El,El#xmlElement.name),?MODULE, {schemaLocation_list_failure,Paths}}, acc_errs(S,Err) end; _ -> S end; _ -> S end. blocking([],BlockDefault) -> BlockDefault; blocking(Block,_) -> Block. allow_empty_content([]) -> true; allow_empty_content([{restriction,{_BT,_CM=[]}}]) -> true; allow_empty_content([{extension,{_BT,_CM=[]}}]) -> true; allow_empty_content([{_,{_,{0,_}}}|Rest]) -> allow_empty_content(Rest); allow_empty_content([{_,{Content,_}}|Rest]) -> case allow_empty_content(Content) of true -> allow_empty_content(Rest); _ -> false end; allow_empty_content(_) -> false. empty_xml_content([]) -> true; empty_xml_content([H|T]) -> case is_whitespace(H) of true -> empty_xml_content(T); _ -> false end; empty_xml_content(_) -> false. xsi_factors(#schema_element{nillable=N}) -> [{nillable,N}]. check_xsi_factors({nil,_,?XSD_INSTANCE_NAMESPACE}, #xmlAttribute{value="true"},XsiFactors,XMLEl,S) -> case key1search(nillable,XsiFactors,false) of {_,true} -> case empty_xml_content(XMLEl#xmlElement.content) of true -> S; _ -> Err = {error_path(XMLEl,XMLEl#xmlElement.name),?MODULE, {element_content_not_nil,XMLEl}}, acc_errs(S,Err) end; _ -> S end; check_xsi_factors(_,_,_,_,S) -> S. check_attributes(XMLEl=#xmlElement{attributes=Atts}, #schema_complex_type{name=Name,attributes=SchemaAtts}, XsiFactors,S) -> %% For each att in Atts check that it is allowed, and has right type. %% For each att in CT that is required check that it exists. Apply %% none present atts that have default values. OldScope = S#xsd_state.scope, SchemaAtts2 = resolve_attributeGroups(SchemaAtts,XMLEl,S), {XMLEl2,S2}=check_attributes(Atts,SchemaAtts2,XMLEl,XsiFactors, name_scope(Name,S),[]), {XMLEl2,S2#xsd_state{scope=OldScope}}; check_attributes(XMLEl=#xmlElement{attributes=[]},_,_,S) -> {XMLEl,S}; check_attributes(XMLEl=#xmlElement{name=N,attributes=Atts},_,XsiFactors,S) -> Fun = fun(AttX,S_in) -> case reserved_attribute(AttX,XMLEl#xmlElement.namespace) of true -> AttQName = mk_EII_QName(AttX#xmlAttribute.name,XMLEl,S_in), check_xsi_factors(AttQName,AttX,XsiFactors,XMLEl,S_in); _ -> Err = {error_path(XMLEl,N),?MODULE, {attribute_in_simpleType,XMLEl,AttX}}, acc_errs(S_in,Err) end end, {XMLEl,foldl(Fun,S,Atts)}. check_attributes([],[SA|SchemaAtts],XMLEl,XsiFactors,S,CheckedAtts) -> case resolve(SA,S) of {#schema_attribute{name=Name,use=Use,default=Def,fixed=Fix},S2} -> case {Use,Def,Fix} of {required,_,_} -> Err = {error_path(XMLEl,XMLEl#xmlElement.name),?MODULE, {required_attribute_missed,XMLEl,Name}}, check_attributes([],SchemaAtts,XMLEl,XsiFactors, acc_errs(S2,Err),CheckedAtts); {optional,undefined,undefined} -> check_attributes([],SchemaAtts,XMLEl,XsiFactors, S2,CheckedAtts); {optional,Default,undefined} -> NewAtt = create_attribute(Name,Default), check_attributes([],SchemaAtts,XMLEl,XsiFactors,S2, [NewAtt|CheckedAtts]); {optional,undefined,Fix} -> NewAtt = create_attribute(Name,Def), check_attributes([],SchemaAtts,XMLEl,XsiFactors,S2, [NewAtt|CheckedAtts]); {optional,Default,Fix} -> Err = {error_path(XMLEl,XMLEl#xmlElement.name),?MODULE, {default_and_fixed_attributes_mutual_exclusive, Name,Default,Fix}}, check_attributes([],SchemaAtts,XMLEl,XsiFactors, acc_errs(S2,Err),CheckedAtts); _ -> check_attributes([],SchemaAtts,XMLEl,XsiFactors, S2,CheckedAtts) end; {{anyAttribute,{_Namespaces,_PC}},S2} -> check_attributes([],SchemaAtts,XMLEl,XsiFactors, S2,CheckedAtts); Err -> ErrMsg={error_path(XMLEl,XMLEl#xmlElement.name),?MODULE, {schema_error,unexpected_object,SA,Err}}, check_attributes([],SchemaAtts,XMLEl,XsiFactors, acc_errs(S,ErrMsg),CheckedAtts) end; check_attributes([],[],XMLEl,_XsiFactors,S,CheckedAtts) -> {XMLEl#xmlElement{attributes=reverse(CheckedAtts)},S}; check_attributes([Att|Atts],SchemaAtts,XMLEl,XsiFactors, S,CheckedAtts) -> %% AttQName = mk_EII_QName(Att#xmlAttribute.name,XMLEl,S), {IsQ,AttQName} = mk_EII_Att_QName(Att#xmlAttribute.name,XMLEl,S), case search_attribute(IsQ,AttQName,SchemaAtts) of {AttObj={attribute,_},SchemaAtts2} -> {SA,S2} = load_object(AttObj,S), #schema_attribute{type=[AttType]} = SA, {Val,S4} = check_type(AttType, Att#xmlAttribute.value, unapplied,S2), check_attributes(Atts,SchemaAtts2,XMLEl,XsiFactors,S4, [Att#xmlAttribute{value=Val}|CheckedAtts]); {undefined,SchemaAtts2} -> %% check for reserved attributes or anyAttribute case reserved_attribute(Att,XMLEl#xmlElement.namespace) of true -> S2 = check_xsi_factors(AttQName,Att,XsiFactors,XMLEl,S), check_attributes(Atts,SchemaAtts2,XMLEl,XsiFactors, S2,[Att|CheckedAtts]); _ -> case check_anyAttribute(Att,SchemaAtts2,XMLEl,S) of {error,Reason} -> check_attributes(Atts,SchemaAtts2,XMLEl,XsiFactors, acc_errs(S,Reason),CheckedAtts); {Att2,S2} -> check_attributes(Atts,SchemaAtts2,XMLEl,XsiFactors, S2,[Att2|CheckedAtts]) end end; Other -> Err = {[],?MODULE,{internal_error,Other}}, check_attributes(Atts,SchemaAtts,XMLEl,XsiFactors, acc_errs(S,Err),CheckedAtts) end. check_anyAttribute(Att,SchemaAtts,El=#xmlElement{name=Name,namespace=NS},S) -> case [Any||Any={anyAttribute,_}<-SchemaAtts] of [] -> {error,{error_path(El,Name),?MODULE, {attribute_not_defined_in_schema, Att#xmlAttribute.name}}}; [{_,{Namespace,PC}}|_] -> case check_anyAttribute_namespace(Namespace,NS) of ok -> check_anyAttribute2(Namespace,PC,Att,NS,S); _ -> {error,{error_path(El,Name),?MODULE, {disallowed_namespace,Namespace, NS,Att#xmlAttribute.name}}} end end. check_anyAttribute2(_,PC,Att,_,S) when PC==skip;PC==lax -> {Att,S}; check_anyAttribute2(_Namespace,_,Att,_NS,S) -> %% PC == strict {Att,S}. check_anyAttribute_namespace(['##any'|_],_NS) -> ok; check_anyAttribute_namespace([absent],_NS) -> ok; check_anyAttribute_namespace([NS|_],NS) -> ok; check_anyAttribute_namespace([{'not',NS}|_],NS) -> false; check_anyAttribute_namespace([_H|T],NS) -> check_anyAttribute_namespace2(T,NS). check_anyAttribute_namespace2([NS|_],NS) -> ok; check_anyAttribute_namespace2([_H|T],NS) -> check_anyAttribute_namespace2(T,NS); check_anyAttribute_namespace2([],_NS) -> false. resolve_attributeGroups(SchemaAtts,El,S) -> resolve_attributeGroups(SchemaAtts,El,S,[],[]). resolve_attributeGroups([AG={attributeGroup,_}|SchemaAtts],El,S,Parents,Acc) -> case resolve(AG,S) of {#schema_attribute_group{name=Name,content=AGC},_S2} -> case {member(Name,Parents),S#xsd_state.redefine} of {true,false} -> Err = {error_path(El,El#xmlElement.name),?MODULE, {cirkular_attributeGroup_reference,Name}}, resolve_attributeGroups(SchemaAtts,El,acc_errs(S,Err), Parents,Acc); {true,_} -> resolve_attributeGroups(SchemaAtts,El,S,Parents,Acc); _ -> resolve_attributeGroups(AGC++[marker|SchemaAtts], El,S,[Name|Parents],Acc) end; Err -> ErrMsg={error_path(El,El#xmlElement.name),?MODULE, {schema_error,unexpected_object,AG,Err}}, resolve_attributeGroups(SchemaAtts,El,acc_errs(S,ErrMsg), Parents,Acc) end; resolve_attributeGroups([marker|T],El,S,[_P|Ps],Acc) -> resolve_attributeGroups(T,El,S,Ps,Acc); resolve_attributeGroups([H|T],El,S,Parents,Acc) -> resolve_attributeGroups(T,El,S,Parents,[H|Acc]); resolve_attributeGroups([],_,_,_,Acc) -> Acc. check_type(Type=#schema_simple_type{},Value,FacetS,S) -> check_simpleType(Type,Value,FacetS,S); check_type({simpleType,{anySimpleType,_}},Value, _FacetS,S) -> {Value,S}; check_type({union,Types},Value,_FacetS,S) -> check_union_types(Types,Value,S); check_type(ST={simpleType,QName={Name,_Scope,_NS}},Value, FacetS,S) -> case is_builtin_simple_type(QName) of true -> {ConstrainedValue,S2} = constrained(QName,default_facets(FacetS,Name),Value,S), case xmerl_xsd_type:check_simpleType(Name,ConstrainedValue,S2) of {ok,_} when Name=='IDREF';Name=='IDREFS' -> %% do something more {ConstrainedValue,S2}; {ok,_} -> {ConstrainedValue,S2}; {error,Reason} -> ?debug("Error validating type: ~p~nwith value: ~p~n",[Name,Value]), {Value,acc_errs(S2,Reason)} end; _ -> case resolve(ST,S) of {[],S2} -> Err = {[],?MODULE,{could_not_resolve_type,ST}}, {Value,acc_errs(S2,Err)}; {RefedST,S2} -> check_type(RefedST,Value, unapplied,S2) end end; check_type(Type,Value, _FacetS,S) -> Err = {[],?MODULE,{could_not_check_value_for_type,Type}}, ?debug("ERROR: not implemented: ~p~nfor value: ~p~n",[Type,Value]), {Value,acc_errs(S,Err)}. check_simpleType(#schema_simple_type{base_type=BT,final=_Final, facets=Facets,content=Type}, Value,FacetS,S) -> case {BT,Type} of {{_ST,_,_},_} -> case is_builtin_simple_type(BT) of true -> {ConstrainedValue,S2} = constrained(BT,merge_facets(default_facets(FacetS,BT),Facets),Value,S), {_,_S3} = check_type({simpleType,BT},ConstrainedValue,applied,S2); _ -> case resolve({simpleType,BT},S) of {BaseST=#schema_simple_type{facets=Facets2},_} -> check_simpleType(BaseST#schema_simple_type{facets=Facets++Facets2},Value,unapplied,S); _ -> Err = {[],?MODULE,{unknown_simpleType,BT}}, {Value,acc_errs(S,Err)} end end; {_,[CT]} -> {_,_S2} = check_type(CT,Value,unapplied,S) end. check_union_types(Types,Value,S) -> check_union_types(Types,Types,Value,S). check_union_types([],UT,Value,S) -> acc_errs(S,{[],?MODULE,{value_not_valid,Value,UT}}); check_union_types([T|Ts],UT,Value,S = #xsd_state{errors=Errs}) -> case check_type(T,Value,unapplied,S) of {Val,S2=#xsd_state{errors=Errs}} -> {Val,S2}; {_,_} -> check_union_types(Ts,UT,Value,S) end. reserved_attribute({RA,_,?XSD_INSTANCE_NAMESPACE},_) when RA==type;RA==nil;RA==schemaLocation;RA==noNamespaceSchemaLocation -> true; reserved_attribute(#xmlAttribute{name=Name},#xmlNamespace{nodes=NSNodes}) -> NameStr = if is_atom(Name) -> atom_to_list(Name); true -> Name end, case string:tokens(NameStr,":") of ["xmlns"|_] -> true; [Prefix,InstAtt] when InstAtt=="type"; InstAtt=="nil"; InstAtt=="schemaLocation"; InstAtt=="noNamespaceSchemaLocation" -> case keyNsearch(?XSD_INSTANCE_NAMESPACE,2,NSNodes,[]) of {Prefix,_} -> true; _ -> false end; _ -> false end; reserved_attribute(_,_) -> false. default_facets(applied,_) -> []; default_facets(_,Type) -> default_facets(Type). default_facets({Name,_,_}) when is_list(Name) -> %% Type already proven to be a built in simple type default_facets(list_to_atom(Name)); default_facets({Name,_,_}) -> default_facets(Name); default_facets(TypeName) -> case is_xsd_string(TypeName) of false -> [{whiteSpace,"collapse"}]; _ -> [] end. merge_facets([],DefinedF) -> DefinedF; merge_facets([F={Name,_}|Rest],DefinedF) -> %% At this moment only F has the allowed value merge_facets(Rest,keyreplace(Name,1,DefinedF,F)). constrained({T,_,_},Facets,Value,S) -> FacetFuns = [facet_fun(T,F)||F<-Facets], constrained2(FacetFuns,Value,S). constrained2([],Value,S) -> {Value,S}; constrained2([Facet|RestFacets],Value,S) -> case Facet(Value) of {error,Reason} -> constrained2(RestFacets,Value,acc_errs(S,Reason)); {ok,NewValue} -> constrained2(RestFacets,NewValue,S) end. id_constraints(CMEl,XMLEl,S) -> S1 = check_uniqueness(CMEl#schema_element.uniqueness, XMLEl,S), S2 = check_keys([X||{key,X}<-CMEl#schema_element.key],XMLEl,S1), prepare_keyrefs([X||{keyref,X}<-CMEl#schema_element.key],XMLEl,S2). check_abstract(ElName,El,#schema_element{name=ElName,abstract=true},S) -> acc_errs(S,{error_path(El,El#xmlElement.name),?MODULE, {abstract_element_instance,ElName}}); check_abstract(ElName,_El,#schema_element{name=ElName},S) -> S; check_abstract(ElName,El,#schema_element{},S) -> {XMLEl,_S2} = load_object({element,ElName},S), check_abstract(ElName,El,XMLEl,S). %% Check of form compliance. %% Globally declared elements may be qualified even though %% elementformdefault = "unqualified". %% If ActualFormValue = "qualified" locally defined names must be %% explicitly or implicitly qualified. %% check_form({LocalName,Scope,Namespace},LocalName, %% InstanceNamespace,ActualFormDefault,S) -> NewS check_form({LocalName,_,Namespace},LocalName, El=#xmlElement{name=Name,namespace=NS},qualified,S) -> case NS#xmlNamespace.default of Namespace -> S; _ -> acc_errs(S,{error_path(El,Name),?MODULE, {qualified_name_required,LocalName}}) end; check_form({LocalName,_,_},LocalName,_El,_ActualFormDefault,S) -> S; check_form({_LocalName,[],_},_QualifiedName,_El,_ActualFormDefault,S) -> S; check_form({_LocalName,_,_},QualifiedName,El,unqualified,S) -> acc_errs(S,{error_path(El,El#xmlElement.name),?MODULE, {unqualified_name_required,QualifiedName}}); check_form({_LocalName,_,_},_QualifiedName,_El,_ActualFormDefault,S) -> S. actual_form_value(undefined,GlobalForm) -> GlobalForm; actual_form_value(LocalForm,_) -> LocalForm. check_uniqueness(undefined,_,S) -> S; check_uniqueness(Unique,XMLEl,S) -> case Unique of [{unique,#id_constraint{selector={selector,SelectorPath}, fields=Fields}}] -> TargetNodeSet = target_node_set(SelectorPath,XMLEl,S), case qualified_node_set(Fields,TargetNodeSet,XMLEl,S) of {[],S1} -> S1; {[_E],S1} -> S1; {L,S1} when is_list(L) -> key_sequence_uniqueness(L,XMLEl,S1) end; _ -> S end. target_node_set(SelectorPath,XMLEl,S) -> xmerl_xpath:string(SelectorPath,XMLEl, [{namespace,S#xsd_state.namespace_nodes}]). qualified_node_set(Fields,Set,El,S) -> qualified_node_set([X||{field,X} <- Fields],Set,El,S,[]). qualified_node_set([],_Set,_El,S,Acc) -> {Acc,S}; qualified_node_set(_,[],_El,S,Acc) -> {Acc,S}; qualified_node_set(Paths,[QN|QNs],El,S,Acc) -> Fun = fun(P,Sx) -> case apply_field(P,QN,Sx) of L when length(L) =< 1 -> % Part1:3.11.4.3 {L,Sx}; Err -> RetErr = {error_path(El,El#xmlElement.name),?MODULE, {illegal_key_sequence_value,Err}}, {[],acc_errs(Sx,RetErr)} end end, {KeySequence,S2} = mapfoldl(Fun,S,Paths), case flatten(KeySequence) of [] -> qualified_node_set(Paths,QNs,El,S2,Acc); KS -> qualified_node_set(Paths,QNs,El,S2,[KS|Acc]) end. apply_field(F,El,S) -> %% xmerl_xpath:string returns a list xmerl_xpath:string(F,El,[{namespace,S#xsd_state.namespace_nodes}]). check_keys([],_XMLEl,S) -> S; check_keys([Key=#id_constraint{selector={selector,SelectorPath}, fields=Fields}|Keys],XMLEl,S) -> TargetNodeSet = target_node_set(SelectorPath,XMLEl,S), S3= case qualified_node_set(Fields,TargetNodeSet,XMLEl,S) of {L,S1} when length(L)==length(TargetNodeSet) -> %% Part1: 3.11.4.4.2.1 S2 = key_sequence_uniqueness(L,XMLEl,S1), _ = save_key(Key#id_constraint{key_sequence=L},S2), S2; {Err,S1} -> acc_errs(S1,{error_path(XMLEl,XMLEl#xmlElement.name),?MODULE, {qualified_node_set_not_correct_for_key,Err}}) end, check_keys(Keys,XMLEl,S3). %% A reference to a key may occur in another environment than the key %% was defined. Thus the key must be referenced after the whole %% document has been processed. At this moment save the info about the %% keyref and compare it with the key later. prepare_keyrefs([],_XMLEl,S) -> S; prepare_keyrefs([KeyRef=#id_constraint{selector={selector,SelectorPath}, fields=Fields}|Rest],XMLEl,S) -> TargetNodeSet = target_node_set(SelectorPath,XMLEl,S), {L,S1} = qualified_node_set(Fields,TargetNodeSet,XMLEl,S), save_keyref(KeyRef#id_constraint{key_sequence=L},S1), prepare_keyrefs(Rest,XMLEl,S1). %% key_sequence_uniqueness(KeySequence,XMLElement,State) %% Each element in KeySequence has same length and is a list of one or %% more elements. key_sequence_uniqueness/2 checks that no two %% elements has equal values. If it detects two (or more) elements %% that have equal first subelements it must continue comparing the %% other subelements of those elements. It returns the state with all %% detected errors saved. key_sequence_uniqueness([],_,S) -> S; key_sequence_uniqueness([_H],_,S) -> S; key_sequence_uniqueness([KS=[F1|FRest]|KSs],El,S) -> case is_key_sequence_equal(F1,KSs) of {true,TailOfEquals} -> S1 = case k_s_u(FRest,TailOfEquals,S) of true -> acc_errs(S,{error_path(El,El#xmlElement.name),?MODULE, {key_value_not_unique,KS}}); _ -> S end, key_sequence_uniqueness(KSs,El,S1); false -> key_sequence_uniqueness(KSs,El,S) end. k_s_u([],_,_) -> true; k_s_u([F|Fs],KSs,S) -> case is_key_sequence_equal(F,KSs) of {true,TailOfEquals} -> k_s_u(Fs,TailOfEquals,S); _ -> false end. is_key_sequence_equal(F,KSs) -> is_key_sequence_equal(F,KSs,[]). is_key_sequence_equal(_F,[],[]) -> false; is_key_sequence_equal(_F,[],Acc) -> {true,reverse(Acc)}; is_key_sequence_equal(F,[[F1|TlF1]|Rest],Acc) -> case is_key_el_equal(F,F1) of true -> is_key_sequence_equal(F,Rest,[TlF1|Acc]); false -> is_key_sequence_equal(F,Rest,Acc) end. %% This test must be more elaborated considering the equal facet is_key_el_equal(#xmlElement{content=C1},#xmlElement{content=C2}) -> %% content must be empty or text since elements must be of %% simpleType is_equal_content(C1,C2); is_key_el_equal(#xmlAttribute{value=V1},#xmlAttribute{value=V1}) -> true; is_key_el_equal(_,_) -> false. is_equal_content([T1|Rest1],[T2|Rest2]) when is_record(T1,xmlText),is_record(T2,xmlText) -> case is_whitespace(T1) of true -> case is_whitespace(T2) of true -> is_equal_content(Rest1,Rest2); _ -> is_equal_content(Rest1,[T2|Rest2]) end; _ -> case T1#xmlText.value==T2#xmlText.value of true -> is_equal_content(Rest1,Rest2); _ -> false end end; is_equal_content([],[]) -> true; is_equal_content(_,_) -> false. schema_concistence_checks(S) -> S2 = check_keyrefs(S), S3 = check_references(S2), S4 = check_substitutionGroups(S3#xsd_state.substitutionGroups,S3), S5 = check_cyclic_defs(S4), reset_state(S5). reset_state(S) -> S#xsd_state{keyrefs=[], 'IDs'=[], unchecked_references=[], substitutionGroups=[], derived_types=[], circularity_stack=[], circularity_disallowed=[]}. check_keyrefs(S) -> KeyRefs = S#xsd_state.keyrefs, %% check that a key exists with same name as each keyref KeyExist = fun({keyref,Name,Refer},S_in) -> case load_key(Refer,S_in) of Key=#id_constraint{} -> check_keyref_cardinality(Name, load_keyref(Name,S_in), Key,S_in); % S_in; _ -> acc_errs(S_in,{[],?MODULE, {keyref_missed_matching_key,Refer}}) end; (Other,S_in) -> acc_errs(S_in,{[],?MODULE, {keyref_unexpected_object,Other}}) end, foldl(KeyExist, S, KeyRefs). check_keyref_cardinality(_,KR=#id_constraint{category=keyref,fields=KeyRefFs}, K=#id_constraint{fields=KeyFs},S) -> case length(KeyRefFs) == length(KeyFs) of true -> S; _ -> acc_errs(S,{[],?MODULE, {cardinality_of_fields_not_equal,KR,K}}) end; check_keyref_cardinality(Name,_,_,S) -> acc_errs(S,{[],?MODULE,{could_not_load_keyref,Name}}). check_references(S) when is_record(S,xsd_state) -> check_references(S#xsd_state.unchecked_references,S). check_references([],S) -> S; check_references([H|T],S) -> check_references(T,check_reference(H,S)). check_reference(Ref={attribute,_},S) -> case load_object(Ref,S) of {#schema_attribute{},S2} -> S2; _ -> acc_errs(S,{[],?MODULE,{reference_undeclared,attribute,Ref}}) end; check_reference(Ref={element,_},S) -> case load_object(Ref,S) of {#schema_element{},S2} -> S2; _ -> acc_errs(S,{[],?MODULE,{reference_undeclared,element,Ref}}) end; check_reference(Ref={attributeGroup,_},S) -> case load_object(Ref,S) of {#schema_attribute_group{},S2} -> S2; _ -> acc_errs(S,{[],?MODULE,{reference_undeclared,attributeGroup,Ref}}) end; check_reference(Ref={group,_},S) -> case load_object(Ref,S) of {#schema_group{},S2} -> S2; _ -> acc_errs(S,{[],?MODULE,{reference_undeclared,group,Ref}}) end; check_reference(Ref={simpleType,_},S) -> case load_object(Ref,S) of {#schema_simple_type{},S2} -> S2; _ -> acc_errs(S,{[],?MODULE,{reference_undeclared,simpleType,Ref}}) end; check_reference(Ref={complexType,_},S) -> case load_object(Ref,S) of {#schema_complex_type{},S2} -> S2; _ -> acc_errs(S,{[],?MODULE,{reference_undeclared,complexType,Ref}}) end; check_reference({simple_or_complex_Type,Ref},S=#xsd_state{errors=Errs}) -> %% complex or simple type case check_reference({complexType,Ref},S) of S2=#xsd_state{errors=Errs} -> S2; _ -> check_reference({simpleType,Ref},S) end; check_reference(Ref,S) -> acc_errs(S,{[],?MODULE,{internal_error,unknown_reference,Ref}}). %% Substitution groups should be checked for cirkular references %% (invalid), that reference structure and type structure are %% concistent. check_substitutionGroups([],S) -> S; check_substitutionGroups(SGs,S) -> S2 = check_substGr_acyclic(SGs,S), S3 = check_substGr_type_structure(SGs,S2), save_substitutionGroup(SGs,S3). check_substGr_acyclic(SGs,S) -> Set = sofs:family(SGs), case catch sofs:family_to_digraph(Set, [acyclic]) of {'EXIT',{cyclic,_}} -> acc_errs(S,{[],?MODULE,{cyclic_substitutionGroup,SGs}}); DG -> digraph:delete(DG), S end. check_substGr_type_structure([SG|SGs],S) -> check_substGr_type_structure(SGs,check_substGr_type_structure2(SG,S)); check_substGr_type_structure([],S) -> S. check_substGr_type_structure2({Head,SGMembers},S) -> TypeCheck = fun(SG,S_in) -> case catch cmp_substGr_types(Head,SG,S_in) of {'EXIT',_} -> acc_errs(S_in,{[],?MODULE, {substitutionGroup_error,Head,SG}}); S_out -> S_out end end, foldl(TypeCheck,S,SGMembers). cmp_substGr_types(Head,SG,S) -> {HeadElement,S2} = load_object({element,Head},S), {MemberElement,S3} = load_object({element,SG},S2), case catch derived_or_equal(MemberElement#schema_element.type, HeadElement#schema_element.type, [],S3) of S4=#xsd_state{} -> S4; _ -> acc_errs(S3,{[],?MODULE,{internal_error,derived_or_equal, MemberElement#schema_element.type, HeadElement#schema_element.type}}) end. check_cyclic_defs(S=#xsd_state{circularity_disallowed=CA}) -> Set = sofs:relation_to_family(sofs:relation(CA)), case catch sofs:family_to_digraph(Set, [acyclic]) of {'EXIT',{cyclic,_}} -> acc_errs(S,{[],?MODULE,{cyclic_definition,CA}}); DG -> digraph:delete(DG), S end. derived_or_equal(Type,Type,_Block,S) -> S; derived_or_equal([MemberTypeRef],[HeadTypeRef],Block,S) -> %% HeadType has to be a {HeadType,_} = resolve(HeadTypeRef,S), {MemberType,_} = resolve(MemberTypeRef,S), derived_or_equal_types(MemberType,HeadType,schema,Block,S). derived_or_equal_types(MemT,{anyType,_},Env,Block,S) -> case MemT of #schema_simple_type{content=Cntnt} -> is_derivation_blocked(Env,Block,Cntnt,S); #schema_complex_type{content=Cntnt} -> is_derivation_blocked(Env,Block,Cntnt,S); _ -> S end; derived_or_equal_types(MemT=#schema_simple_type{name=Mem,base_type=MemBase}, #schema_simple_type{name=Head},Env,Block,S) when Mem==Head;MemBase==Head -> is_derivation_blocked(Env,Block,MemT#schema_simple_type.content,S); derived_or_equal_types({simpleType,Name}, {simpleType,Name},_Env,_Block,S) -> S; derived_or_equal_types(#schema_simple_type{base_type=Name,content=Content}, {simpleType,Name},Env,Block,S) -> is_derivation_blocked(Env,Block,Content,S); derived_or_equal_types(#schema_simple_type{content=[{LoU,[Content]}]}, SimpleType,Env,Block,S) when LoU==list;LoU==union -> {NewMemType,S2}=resolve(Content,S), derived_or_equal_types(NewMemType,SimpleType,Env,Block,S2); derived_or_equal_types(MemT=#schema_complex_type{name=Mem,base_type=MemBase}, #schema_complex_type{name=Head},Env,Block,S) when Mem==Head;MemBase==Head -> is_derivation_blocked(Env,Block,MemT#schema_complex_type.content,S); derived_or_equal_types(MemT,HeadT,_Env,_Block,S) -> acc_errs(S,{[],?MODULE,{type_of_element_not_derived,MemT,HeadT}}). is_derivation_blocked(schema,_,_,S) -> S; is_derivation_blocked(instance,['#all'],Derivation,S) -> acc_errs(S,{derivation_blocked,'#all',Derivation}); is_derivation_blocked(instance,[],_,S) -> S; is_derivation_blocked(instance,Block,C=[{Derivation,_}],S) -> case member(Derivation,Block) of true -> acc_errs(S,{[],?MODULE,{derivation_blocked,Derivation,C}}); _ -> S end; is_derivation_blocked(instance,_Block,_,S) -> S. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% create_attribute(QName,Value) -> {Name,_Scope,NSName} = QName, #xmlAttribute{name=Name,namespace={Name,NSName},value=Value}. %% mk_name(L), L must be a list in reversed order mk_name(L) -> mk_name(L,[]). mk_name([],_Acc) -> []; mk_name([H],[]) -> H; mk_name([H],Acc) -> list_to_atom(lists:concat([H,'_'|Acc])); mk_name([H|T],[]) -> mk_name(T,[H]); mk_name([H1|T],Acc) -> mk_name(T,[H1,'_'|Acc]). cmp_name({LName,Scope,NS},{LName,Scope,NS},_S) -> true; %% substitutionGroup allows different names cmp_name(XMLName={_,Scope,NS},CMName={_,Scope,NS},S) -> {El,_S2} = load_object({element,XMLName},S), cmp_SG_name(El,CMName,S); cmp_name(_,_,_) -> false. cmp_SG_name(#schema_element{substitutionGroup=Name},Name,_S) -> true; cmp_SG_name(#schema_element{substitutionGroup=SGName},CMName,S) -> cmp_name(SGName,CMName,S); cmp_SG_name(_,_,_) -> false. %% Namespace: [{not,NS} | NS] %% cmp_any_namespace({_,_,EIINS},Namespace,_S) -> case member(EIINS,Namespace) of true -> true; _ -> case keysearch(EIINS,2,Namespace) of {value,{'not',EIINS}} -> false; _ -> true end end. at_least_one({_Min,Max}) when Max > 0 -> true; at_least_one(_) -> false. is_optional({element,{_,{0,_}}},_S) -> true; is_optional({any,{_,{0,_},_}},_S) -> true; is_optional({MG,{_CM,{0,_}}},_S) when MG =:= all; MG =:= sequence; MG =:= choice -> true; is_optional({MG,{CM,_Occ}},S) when MG =:= all; MG =:= sequence; MG =:= choice -> case member(false,[is_optional(Y,S)||Y<-CM]) of true -> false; _ -> true end; is_optional({group,{_,{0,_}}},_S) -> true; is_optional(G={group,_},S) -> case resolve(G,S) of {#schema_group{content=[]},_} -> true; {#schema_group{content=[CM]},_} -> is_optional(CM,S) end; is_optional(_,_) -> false. acc_errs(S=#xsd_state{errors=Errs},ErrMsg) -> S#xsd_state{errors=[ErrMsg|Errs]}. %% invoked with an element/XML-node and a name of the error_path([H|_T],Top) when H==#xmlElement{};H==#xmlText{} -> error_path(H,Top); error_path([_H|T],Top) -> error_path(T,Top); error_path(#xmlElement{parents=Ps,pos=Pos},Top) -> error_path(Ps,Pos,Top); error_path(#xmlAttribute{parents=Ps,pos=Pos},Top) -> error_path(Ps,Pos,Top); error_path(#xmlText{parents=Ps,pos=Pos},Top) -> error_path(Ps,Pos,Top); error_path(_,_) -> []. error_path([],Pos,Top) when is_integer(Pos) -> mk_xpath_path([{Top,Pos}]); error_path([],_,Top) -> Top; error_path(Nodes,_,_) -> mk_xpath_path(Nodes). mk_xpath_path(Nodes) -> Slash = fun([H1,H2|T],Fun,Acc) -> Fun([H2|T],Fun,["/",H1|Acc]); ([H1],_,Acc) -> [H1|Acc]; ([],_,Acc) -> Acc end, flatten(Slash([lists:concat([A,"[",B,"]"])||{A,B}<-Nodes],Slash,[])). resolve(XSDType,InstanceEl,S) -> explicit_type(XSDType,InstanceEl,S). resolve([H],S) -> resolve(H,S); resolve(Any={any,_},S) -> {Any,S}; resolve(Any={anyAttribute,_},S) -> {Any,S}; resolve(Any={anyType,_},S) -> {Any,S}; resolve(Seq={sequence,_},S) -> {Seq,S}; resolve(Choice={choice,_},S) -> {Choice,S}; resolve({simple_or_complex_Type,QN},S) -> %% case load_object({simpleType,QN},S) of case resolve({simpleType,QN},S) of Res={#schema_simple_type{},_S1} -> Res; {[],_S} -> case load_object({complexType,QN},S) of {[],_} -> ?debug("could not load object ~p~n", [{simple_or_complex_Type,QN}]), {[],S}; T -> T end; T -> T end; resolve({complexType,{anyType,_,_}},S) -> {{anyType,[]},S}; resolve({simpleType,{anyType,_,_}},S) -> {{anyType,[]},S}; resolve(ST={simpleType,NameNS={_,_,_}},S) -> case load_object(ST,S) of {[],_S} -> case is_builtin_simple_type(NameNS) of true -> {ST,S}; _ -> {[],S} end; Obj -> %resolve(Obj,S) Obj end; resolve({substitutionGroup,QName},S) -> %% This shall resolve to the type of the element QName case load_object({element,QName},S) of Ret = {[],_S} -> Ret; {#schema_element{type=[Type]},S2} -> case Type of {simple_or_complex_Type,_} -> resolve(Type,S2); _ -> {Type,S2} end; {#schema_element{type=Type},S2} -> {Type,S2} end; resolve({extension,{BaseType,CM}},S) -> case is_builtin_simple_type(BaseType) of true -> {{simpleType,BaseType},S}; _ -> case resolve({simple_or_complex_Type,BaseType},S) of {ST = #schema_simple_type{},_} -> {ST,S}; %% any attributes in CM are already %% propagated to the outer complex type. {CT = #schema_complex_type{content=C},_} -> {NewC,S2} = extend_type(C,CM,S), {CT#schema_complex_type{content=NewC},S2}; T -> T end end; resolve({restriction,{BaseType,CM}},S) -> case is_builtin_simple_type(BaseType) of true -> {{simpleType,BaseType},S}; _ -> case resolve({simple_or_complex_Type,BaseType},S) of {ST = #schema_simple_type{content=C},_} -> {NewContent,S2} = restrict_simple_type(C,CM,BaseType,S), {ST#schema_simple_type{content=NewContent},S2}; %% the outer complex type. {CT = #schema_complex_type{content=C},_} -> {NewContent,S2} = restrict_type(C,CM,BaseType,S), {CT#schema_complex_type{content=NewContent},S2}; T -> T end end; resolve(optional_text,S) -> {optional_text,S}; resolve(E,S) -> ?debug("resolve(~p, S)~n",[E]), load_object(E,S). %% explicit_type checks whether the instance element is of an explicit %% type pointed out by xsi:type. A type refernced by xsi:type must be %% the same as, or derived from the instance element's type. Concluded %% from 3.4.6 section "Schema Component Constraint: Type Derivation OK %% (Complex)". explicit_type(XSDType,InstanceEl=#xmlElement{namespace=NS,attributes=Atts},S) -> case get_instance_type(NS,Atts) of false -> resolve(XSDType,S); {ok,Name} -> %% Create a {name,scope,namespace}, what is scope? %% assume scope always is at top for the referenced type. QName = mk_EII_QName(Name,InstanceEl,S#xsd_state{scope=[]}), %% The type referenced by "xsi:type" attribute must be a %% legal substitution for InstanceEl: "xsi:type" is the %% same as or a derivation from InstanceEl's type. {XsiType,S2} = resolve({simple_or_complex_Type,QName},S), {_Blocks,S3} = legal_substitution(InstanceEl,XsiType,S2), %% {ResXSDType,S4} = resolve(XSDType,S3), {XsiType,S3} %% merge_derived_types(ResXSDType,XsiType,Blocks,xsitype,S4) end. get_instance_type(#xmlNamespace{nodes=Nodes},Atts) -> case keyNsearch(?XSD_INSTANCE_NAMESPACE,2,Nodes,[]) of {Prefix,_} -> TypeAtt = list_to_atom(Prefix++":type"), case keyNsearch(TypeAtt,#xmlAttribute.name,Atts,[]) of #xmlAttribute{value=Value} -> {ok,Value}; _ -> false end; _ -> false end. merge_derived_types(Type1,Type2,Mode,S) -> merge_derived_types(Type1,Type2,[],Mode,S). merge_derived_types(Type,Type,_Blocks,_Mode,S) -> {Type,S}; merge_derived_types(XSDType,InstType,Blocks,Mode,S) -> case catch merge_derived_types2(XSDType,InstType,Blocks,Mode,S) of {'EXIT',Reason} -> {InstType,acc_errs(S,{[],?MODULE,{internal_error,merge_derived_types,Reason}})}; {error,S2} -> {InstType,S2}; {MergedType,S2} -> _ = save_merged_type(MergedType,S2), {MergedType,S2} end. merge_derived_types2(XSDType=#schema_complex_type{}, InstType=#schema_complex_type{},Blocks,Mode,S) -> %% InstType is the type of the instance element that may reference %% a type that is an extension/restriction of the XSDType. %% Alternatively XSDType is the base type and InstType the derived %% type or XSDType is the original type that is redefined into %% InstType. %% %% complexType can turn into: %% simpleContent | complexContent %% simpleContent -> restriction %% complexContent -> restriction | extension %% of course also one of: %% ((group | all | choice | sequence)?, %% ((attribute | attributeGroup)*,anyAttribute?)))) %% but then it shouldn't be any difference between XSDType %% and InstType case InstType#schema_complex_type.content of [{extension,{BaseTypeName,CM}}] -> {ExtendedAtts,S2} = extend_attributes(XSDType#schema_complex_type.attributes, InstType#schema_complex_type.attributes, BaseTypeName,CM,Mode, allowed_derivation(extension,Blocks,S)), case compare_base_types(BaseTypeName,XSDType,S2) of ok -> {NewContent,S3} = extend_type(XSDType#schema_complex_type.content,CM,S2), {InstType#schema_complex_type{attributes=ExtendedAtts, content=NewContent},S3}; Err -> {error,acc_errs(S2,Err)} end; [{restriction,{BaseTypeName,CM}}] -> {RestrictedAtts,S2} = restrict_attributes(XSDType#schema_complex_type.attributes, InstType#schema_complex_type.attributes, allowed_derivation(restriction,Blocks,S)), case compare_base_types(BaseTypeName,XSDType,S2) of ok -> {NewContent,S3}= case InstType#schema_complex_type.complexity of simple -> restrict_simple_type(XSDType#schema_complex_type.content,CM,BaseTypeName,S2); _ -> restrict_type(XSDType#schema_complex_type.content,CM,BaseTypeName,S2) end, {InstType#schema_complex_type{attributes=RestrictedAtts, content=NewContent},S3}; Err -> {error,acc_errs(S,Err)} end; Other -> {error,acc_errs(S,{[],?MODULE,{unexpected_type,Other}})} end; merge_derived_types2(XSDType=#schema_simple_type{}, InstType=#schema_simple_type{},Blocks,_Mode,S) -> case InstType#schema_simple_type.content of [{restriction,{BaseTypeName,CM}}] -> case compare_base_types(BaseTypeName,XSDType,S) of ok -> {NewContent,S2}= restrict_simple_type(XSDType#schema_simple_type.content,CM, BaseTypeName,S), {InstType#schema_simple_type{content=NewContent}, allowed_derivation(restriction,Blocks,S2)}; Err -> {error,allowed_derivation(restriction,Blocks, acc_errs(S,Err))} end; Other -> {error,acc_errs(S,{unexpected_type,Other})} end; merge_derived_types2(XSDType=#schema_simple_type{content=XSDContent}, InstType=#schema_complex_type{},Blocks,_Mode,S) -> %% This is the way to add attributes to a simpleType case InstType#schema_complex_type.content of [{extension,{BaseTypeName,CM}}] -> case compare_base_types(BaseTypeName,XSDType,S) of ok -> {NewContent,S2} = if CM==[] -> {XSDContent,S}; true -> extend_type(XSDContent,CM,S) end, {InstType#schema_complex_type{content=NewContent}, allowed_derivation(extension,Blocks,S2)}; Err -> {error,allowed_derivation(extension,Blocks, acc_errs(S,Err))} end; [{restriction,{BaseTypeName,_CM}}] when InstType#schema_complex_type.complexity == simple -> case compare_base_types(BaseTypeName,XSDType,S) of ok -> {InstType, allowed_derivation(restriction,Blocks,S)}; Err -> {error,allowed_derivation(extension,Blocks, acc_errs(S,Err))} end; Other -> {error,acc_errs(S,{[],?MODULE,{unexpected_type,Other}})} end; merge_derived_types2(_XSDType={simpleType,BuiltInType}, InstType=#schema_complex_type{content=Content}, Blocks,_Mode,S) -> case Content of [{extension,{BuiltInType,CM}}] -> {NewContent,S2} = extend_type([],CM,S), {InstType#schema_complex_type{base_type=BuiltInType, content=NewContent}, allowed_derivation(extension,Blocks,S2)}; [{restriction,{BuiltInType,CM}}] -> {NewContent,S2} = restrict_simple_type([],CM,BuiltInType,S), {InstType#schema_complex_type{base_type=BuiltInType, content=NewContent}, allowed_derivation(restriction,Blocks,S2)}; Other -> {error,acc_errs(S,{[],?MODULE,{unexpected_content,Other,InstType}})} end; merge_derived_types2(_XSDType={anyType,_},InstType,Blocks,_Mode,S) -> case type_content(InstType) of [{restriction,{_BaseTypeName,CM}}] -> {set_type_content(InstType,CM), allowed_derivation(restriction,Blocks,S)}; Other -> {error,acc_errs(S,{[],?MODULE,{unexpected_content,Other,InstType}})} end; merge_derived_types2({simpleType,BuiltInType}, InstType=#schema_simple_type{content=Content}, Blocks,_Mode,S) -> case Content of [{restriction,{BuiltInType,CM}}] -> {InstType#schema_simple_type{base_type=BuiltInType, content=CM}, allowed_derivation(restriction,Blocks,S)}; Other -> {error,acc_errs(S,{[],?MODULE,{unexpected_content,Other,InstType}})} end; merge_derived_types2(XSDType,InstType,Blocks,Mode,S) -> case {variety_type(XSDType,S),variety_type(InstType,S)} of {XSDType,InstType} -> {error,acc_errs(S,{[],?MODULE,{unexpected_type,XSDType,InstType}})}; {_XSDType2,InstType2} -> case allowed_derivation(substitution,Blocks,S) of S -> merge_derived_types2(XSDType,InstType2,Blocks,Mode,S); S2 -> {error,S2} end end. variety_type(#schema_simple_type{variety=list,content=[{list,[Type]}]},S) -> {VarietyType,_}=resolve(Type,S), VarietyType; variety_type(#schema_simple_type{variety=union,content=[{union,Types}]},S) -> [T||{T,_}<-[resolve(VarietyType,S)||VarietyType<-Types]]; variety_type(Type,_S) -> Type. allowed_derivation(_Derivation,_Blocks,S) -> %% case {member(Derivation,Blocks),member('#all',Blocks)} of %% {true,_} -> %% acc_errs(S,{[],?MODULE,{derivation_blocked,Blocks,Derivation}}); %% {_,true} -> %% acc_errs(S,{[],?MODULE,{derivation_blocked,'#all',Derivation}}); %% _ -> %% S %% end. S. %% El is the instance element that has the xsi:type attribute with %% XsiType. legal_substitution(El=#xmlElement{name=ElName},XsiType,S) -> %% See 3.3.6, Substitution Group OK (Transitive) %% For ok one of following: 1) same type in El as XsiType, 2) %% XsiType is a restriction/extension where El's type is the %% base, 3) XsiType is a member in the substitutionGroup of %% ElName. QName = mk_EII_QName(ElName,El,S), {HeadElement,_} = load_object({element,QName},S), legal_substitution2(HeadElement,XsiType,S). legal_substitution2(#schema_element{type=Type,block=Bl},XsiType,S) -> {HeadType,_}=resolve(Type,S), Block = blocking(Bl,S#xsd_state.blockDefault), S2 = derived_or_equal_types(XsiType,HeadType,instance,Block,S), {Block,S2}. compare_base_types(QName,#schema_complex_type{name=QName},_S) -> ok; compare_base_types(QName1,#schema_complex_type{name=QName2},_S) -> {[],?MODULE,{names_not_equal,QName1,QName2}}; compare_base_types(QName,#schema_simple_type{name=QName},_S) -> ok; compare_base_types(QName1,#schema_simple_type{name=QName2},_S) -> {[],?MODULE,{names_not_equal,QName1,QName2}}. %%compare_base_types(QName1,Other,_S) -> %% {[],?MODULE,{miss_match_base_types,QName1,Other}}. extend_type(Base,Extension,S) -> extend_type(Base,Extension,[],S). %% Content may be (attribute | attributeGroup)*, anyAttribute? if %% it is of simpleContent or: %% (group | all | choice | sequence)?,((attribute | attributeGroup)*, %% anyAttribute?) if it is of complexContent extend_type([],[],Acc,S) -> {reverse(Acc),S}; extend_type([BaseCM|BaseRest],Ext=[{SeqCho,{Extension,Occ}}|ExtRest],Acc,S) when SeqCho == sequence; SeqCho == choice -> case BaseCM of {SeqCho,{BC,_Occ}} -> extend_type(BaseRest,ExtRest,[{SeqCho,{BC++Extension,Occ}}|Acc],S); G = {group,{_Ref,_Occ}} -> {ResG,S2} = resolve(G,S), case ResG of #schema_group{content=GC} -> case keysearch(SeqCho,1,GC) of {value,SCC} -> extend_type([SCC|BaseRest],Ext,Acc,S); _ -> S3 = acc_errs(S2,{[],?MODULE,{illegal_content_in_extension,Ext}}), {reverse(Acc),S3} end; _ -> S3 = acc_errs(S2,{[],?MODULE,{illegal_content_in_extension,ResG}}), {reverse(Acc),S3} end; _ -> %% BaseCM may be a group that has a sequence extend_type([BaseCM|BaseRest],ExtRest,[{SeqCho,{Extension,Occ}}|Acc],S) end; extend_type(BaseCM,ExtCM,Acc,S) when is_list(BaseCM),is_list(ExtCM) -> extend_type([],[],reverse(ExtCM)++reverse(BaseCM)++Acc,S). restrict_type(Content,CM,BaseTypeName,S) -> restrict_type(Content,CM,BaseTypeName,[],S). %% Restriction may appear within a 1) simpleType, 2) simpleContent or %% 3) complexContent construct. %% The possible content of restriction in different contexts are: %% 1) (simpleType?, (Any facet)*) %% 2) (simpleType?, (Any facet)*),((attribute | attributeGroup)*, anyAttribute?) %% 3) (group | all | choice | sequence)?, %% ((attribute | attributeGroup)*, anyAttribute?) %% A restriction of a simpleType narrows the possible values of the %% base type by applying facets. %% A restriction of a complexType (simpleContent / complexContent) must %% enumerate all elements, including the preserved ones of the base type. %% Attributes don't have to be enumerated. restrict_type([],[],_TypeName,Acc,S) -> {reverse(Acc),S}; restrict_type([{restriction,{_Type,CM1}}],[],_TypeName,Acc,S) -> {CM1++reverse(Acc),S}; restrict_type([{extension,{_Type,CM1}}],[],_TypeName,Acc,S) -> {CM1++reverse(Acc),S}; restrict_type(BaseRest,[ST={simpleType,_Name}|RestrRest],TypeName,Acc,S) -> %% context 1 or 2 restrict_type(BaseRest,RestrRest,TypeName,[ST|Acc],S); restrict_type([BaseCM|BaseRest],[{SeqCho,{CM,Occ}}|RestrRest],TypeName,Acc,S) when SeqCho == sequence; SeqCho == choice -> %% context 3 case BaseCM of {SeqCho,{BCM,_}} -> case check_element_presence(CM,BCM) of {error,Reason} -> {reverse(Acc),acc_errs(S,Reason)}; ok -> restrict_type(BaseRest,RestrRest,TypeName, [{SeqCho,{CM,Occ}}|Acc],S) end; Other -> {reverse(Acc),acc_errs(S,{[],?MODULE,{SeqCho,expected,Other,found}})} end; restrict_type(BaseRest,[Facet={F,_Val}|RestrRest],TypeName,Acc,S) -> case is_facet(F) of true -> restrict_type(BaseRest,RestrRest,TypeName,[Facet|Acc],S); _ -> {reverse(Acc),acc_errs(S,{[],?MODULE,{does_not_support,Facet,in_restriction}})} end. restrict_simple_type([{restriction,{_Type,BaseCM}}],RestrCM,_TypeName,S) -> restrict_simple_type(BaseCM,RestrCM,_TypeName,S); restrict_simple_type(CM=[{extension,{_Type,_BaseCM}}],_RestrCM,TypeName,S) -> {[],acc_errs(S,{[],?MODULE,{illegal_content_simple_type,CM,TypeName}})}; restrict_simple_type(BaseCM,RestrCM,TypeName,S) -> %% all restrictions in base comes first, then check that no one of %% the facets in the restriction attempts to redefine a fixed %% facet in the base. Add the facets of the restriction. {Acc,S2} = case BaseCM of [] -> {[],S}; _ -> restrict_simple_type([],BaseCM,TypeName,S) end, %% Acc = reverse(BaseCM), Fun = fun(X={simpleType,_},{Acc_in,S_in})-> {[X|Acc_in],S_in}; (X={LU,_},{Acc_in,S_in}) when LU==list;LU==union -> {[X|Acc_in],S_in}; (X={F,_},{Acc_in,S_in})-> %% Fun = fun(X={F,_},{Acc_in,S_in})-> case is_facet(F) of true -> {[X|Acc_in],S_in}; _ -> {Acc_in,acc_errs(S_in,{[],?MODULE,{illegal_in_restriction_of_simpleType,X}})} end; (X,{Acc_in,S_in}) -> {Acc_in,acc_errs(S_in,{[],?MODULE,{illegal_in_restriction_of_simpleType,X}})} end, foldl(Fun,{Acc,S2},RestrCM). check_element_presence([],_BCM) -> ok; check_element_presence([{element,{Name,_}}|CM],BCM) -> case check_element_presence2(Name,BCM) of {ok,BCM2} -> check_element_presence(CM,BCM2); _ -> {error,{[],?MODULE,{element,Name,not_present_in_restriction}}} end; check_element_presence([_C|CM],BCM) -> check_element_presence(CM,BCM). check_element_presence2(Name,BCM) -> check_element_presence2(Name,BCM,[]). check_element_presence2({LocalName,_,NS},[{element,{{LocalName,_,NS},_}}|BCM],Acc) -> {ok,reverse(Acc)++BCM}; check_element_presence2(Name,[E|BCM],Acc) -> check_element_presence2(Name,BCM,[E|Acc]); check_element_presence2(_Name,[],_Acc) -> error. %% A check of the extended attribute should take place here. %% extend_attributes(BaseAtts,[EA={attribute,Name}|ExtAtts], BaseTypeName,CM,Mode,S) -> NewAtts=key_replace_or_insert(Name,2,BaseAtts,EA), extend_attributes(NewAtts,ExtAtts,BaseTypeName,CM,Mode,S); %% Extension of wildcards should be handled as described in chapter %% 3.4.2 and subsection "Complex Type Definition with simple content %% Schema Component". extend_attributes(BaseAtts,[LocalWC={anyAttribute,_NS_PC}|ExtAtts], BaseTypeName,CM,deduce,S) -> {CompleteWC,S2} = complete_wildcard(LocalWC,CM,S), BaseWC = base_wildcard(BaseAtts), {NewWC,S4} = case BaseWC of [] -> {CompleteWC,S2}; _ -> if CompleteWC==LocalWC -> {BaseWC,S2}; true -> {NS,S3} = attribute_wildcard_union(wc_ns(CompleteWC), wc_ns(BaseWC),S2), PC = wc_pc(CompleteWC), {[{anyAttribute,{NS,PC}}],S3} end end, NewBaseAtts = keyreplace(anyAttribute,1,BaseAtts,NewWC), extend_attributes(NewBaseAtts,ExtAtts,BaseTypeName,CM,deduce,S4); extend_attributes(Atts,[],_,_,_Mode,S) -> {reverse(Atts),S}. %% A check of the restricted attribute should take place here. restrict_attributes(BaseAtts,[RA|RAtts],S) -> %% NewAtts = keyreplace(Name,2,BaseAtts,EA), {NewAtts,S2} = restrict_attribute_replace(BaseAtts,RA,S), restrict_attributes(NewAtts,RAtts,S2); restrict_attributes(Atts,[],S) -> {reverse(Atts),S}. restrict_attribute_replace(BaseAtts,EA={attribute,Name},S) -> {keyreplace(Name,2,BaseAtts,EA),S}; restrict_attribute_replace(BaseAtts,EA={anyAttribute,{NS,_}},S) -> case key1search(anyAttribute,BaseAtts,false) of false -> {BaseAtts,acc_errs(S,{invalid_derivation,EA,BaseAtts})}; {_,{BaseNS,_}} -> S2 = wildcard_subset(BaseNS,NS,S), {keyreplace(anyAttribute,1,BaseAtts,EA),S2} end. %% 3.10.6 Constraints on Wildcard Schema Components %% Schema Component Constraint: Wildcard Subset %% bullet 1: wildcard_subset(['##any'],_NS,S) -> S; %% bullet 2: wildcard_subset([{'not',NS}],[{'not',NS}],S) -> S; %% bullet 3: %% if NS has a number of namespaces all of them must be in BaseNS, %% if BaseNS has {not,Namespaces} neither of Namespaces must be in NS wildcard_subset(_,[],S) -> S; wildcard_subset(BaseNS,NS,S) when is_list(BaseNS),is_list(NS) -> case [X||X<-NS,member(X,BaseNS)] of NS -> S; _ -> acc_errs(S,{[],?MODULE,{wildcard_namespace,NS, not_subset_of_base_namespace,BaseNS}}) end; wildcard_subset(BaseNS=[{'not',BNS}],NS,S) when is_list(NS) -> case [X||X<-BNS,member(X,NS)] of [] -> S; _ -> acc_errs(S,{[],?MODULE,{wildcard_namespace,NS, not_subset_of_base_namespace,BaseNS}}) end; wildcard_subset(BaseNS,NS,S) -> acc_errs(S,{[],?MODULE,{wildcard_namespace,NS, not_subset_of_base_namespace,BaseNS}}). base_wildcard(BaseAtts) -> key1search(anyAttribute,BaseAtts,[]). complete_wildcard(LocalWC,CM,S) -> case keysearch(attributeGroup,1,CM) of {value,AttG={_,_Name}} -> case resolve(AttG,S) of {#schema_attribute_group{content=Atts},_S} -> case keysearch(anyAttribute,1,Atts) of {value,AA} -> {PC,S2} = attribute_wildcard_intersection(wc_ns(LocalWC), wc_ns(AA),S), {{anyAttribute,{wc_pc(LocalWC),PC}},S2}; _ -> {LocalWC,S} end; _ -> {LocalWC,S} end; _ -> {LocalWC,S} end. wc_ns({anyAttribute,{NS,_}})-> NS; wc_ns(_) -> []. wc_pc({anyAttribute,{_,PC}})-> PC; wc_pc(_) -> strict. %% Union of wildcard namespace: %% 3.10.6 Constraints on Wildcard Schema Components %% Schema Component Constraint: Attribute Wildcard Union %% bullet 1 attribute_wildcard_union(NS,NS,S) -> {NS,S}; %% bullet 2 attribute_wildcard_union(NS1,NS2,S) when NS1==['##any'];NS2==['##any'] -> {['##any'],S}; attribute_wildcard_union(NS1,NS2,S) -> case {keysearch('not',1,NS1),keysearch('not',1,NS2)} of {false,false} -> %% bullet 3 {NS1 ++ [X||X<-NS2,member(X,NS1)==false],S}; {{value,{_,Set1}},{value,{_,Set2}}} -> %% bullet 4 or 1 case {lists:sort(Set1),lists:sort(Set2)} of {L,L} -> {[{'not',L}],S}; _ -> {[{'not',[absent]}],S} end; _ -> %% either is a {not,NS} case toggle_ns(NS1,NS2) of {_O1=[absent],NS3} -> %% bullet 6 case member(absent,NS3)of true -> {['##any'],S}; _ -> {[{'not',[absent]}],S} end; {O1=[O1Name],NS4} -> %% bullet 5 case member(O1Name,NS4) of true -> case member(absent,NS4) of true -> {['##any'],S}; %% 5.1 _ -> {[{'not',[absent]}],S} %% 5.2 end; _ -> case member(absent,NS4) of true -> %% not expressible 5.3 Err = {[],?MODULE,{wildcard_namespace_union_not_expressible,NS1,NS2}}, {[],acc_errs(S,Err)}; _ -> {[{'not',O1}],S} %% 5.4 end end end end. %% Schema Component Constraint: Attribute Wildcard Intersection %% bullet 1 attribute_wildcard_intersection(O1,O1,S) -> {O1,S}; %% bullet 2 attribute_wildcard_intersection(['##any'],O2,S) -> {O2,S}; attribute_wildcard_intersection(O1,['##any'],S) -> {O1,S}; %% bullet 6 attribute_wildcard_intersection([{'not',[absent]}],O2=[{'not',_}],S) -> {O2,S}; attribute_wildcard_intersection(O1=[{'not',_}],[{'not',[absent]}],S) -> {O1,S}; %% bullet 5 attribute_wildcard_intersection([{'not',NS1}],[{'not',NS2}],S) -> case [X||X<-NS1,member(X,NS2)] of [] -> {[],acc_errs(S,{[],?MODULE,{wildcard_namespace_intersection_not_expressible,NS1,NS2}})}; NS3 -> {[{'not',NS3}],S} end; %% bullet 3 attribute_wildcard_intersection([{'not',NS}],O2,S) -> {lists:delete(absent,[X||X<-O2,member(X,NS)==false]),S}; attribute_wildcard_intersection(O1,[{'not',NS}],S) -> {lists:delete(absent,[X||X<-O1,member(X,NS)==false]),S}; %% bullet 4 attribute_wildcard_intersection(O1,O2,S) -> case [X||X<-O1,member(X,O2)] of [] -> {[absent],S}; L ->{L,S} end. toggle_ns(NS1,NS2=[{'not',_}]) -> {NS2,NS1}; toggle_ns(NS1,NS2) -> {NS1,NS2}. deduce_derived_types([DT|DTs],S) -> deduce_derived_types(DTs,deduce_derived_type(DT,S,[])); deduce_derived_types([],S) -> S. %% deduce_derived_type deduce_derived_type(DT={_Kind,TName},S,RefChain) -> %% check circular references case keymember(TName,2,RefChain) of true -> acc_errs(S,{[],?MODULE,{circular_reference_of_type,TName}}); _ -> deduce_derived_type2(DT,S,[DT|RefChain]) end. deduce_derived_type2(DT,S,RefChain) -> {DerivedType,_} = resolve(DT,S), case is_unmerged_type(DerivedType) of true -> BaseTypeRef = get_base_type(DerivedType), {BaseType,_} = resolve({simple_or_complex_Type,BaseTypeRef},S), BaseTypeKind = fun(#schema_complex_type{}) -> complexType; (_) -> simpleType end (BaseType), case is_unmerged_type(BaseType) of true -> %% both derived and not deduced S2 = deduce_derived_type({BaseTypeKind,BaseTypeRef},S,RefChain), case S2#xsd_state.errors==S#xsd_state.errors of true -> deduce_derived_type2(DT,S2,RefChain); _ -> S2 end; _ -> {_,S2} = merge_derived_types(BaseType,DerivedType,deduce,S), S2 end; _ -> S end. is_unmerged_type(Type) -> case type_content(Type) of [{restriction,_}] -> true; [{extension,_}] -> true; _ -> false end. type_content(#schema_simple_type{content=C}) -> C; type_content(#schema_complex_type{content=C}) -> C; type_content(_) -> []. set_type_content(Type=#schema_simple_type{},CM) -> Type#schema_simple_type{content=CM}; set_type_content(Type=#schema_complex_type{},CM) -> Type#schema_complex_type{content=CM}. get_base_type(#schema_simple_type{base_type=BT}) -> BT; get_base_type(#schema_complex_type{base_type=BT}) -> BT. in_scope({Local,_Scope,_NS},S) -> in_scope(Local,S); in_scope(Name,S=#xsd_state{scope=Scope}) when is_atom(Name) -> S#xsd_state{scope=[Name|Scope]}; in_scope(Name,S=#xsd_state{scope=Scope}) when is_list(Name) -> S#xsd_state{scope=[atom_if_shortasciilist(Name)|Scope]}. out_scope({Local,_,_},S) -> out_scope(atom_if_shortasciilist(Local),S); out_scope(Name,S=#xsd_state{scope=[Name|Rest]}) -> S#xsd_state{scope=Rest}; out_scope(_Name,S) -> S. name_scope({'_xmerl_no_name_',Scope,_NS},S) -> S#xsd_state{scope=Scope}; name_scope({Name,Scope,_NS},S) -> S#xsd_state{scope=[Name|Scope]}. reset_scope(S) -> S#xsd_state{scope=[]}. set_scope(Scope,S) when is_list(Scope) -> S#xsd_state{scope=Scope}; set_scope(_,S) -> S. is_global_env([_Env]) -> true; is_global_env(_) -> false. kind(#xmlElement{name=Name},S) -> LocalName=local_name(Name), is_a(LocalName,S). kind(#xmlElement{name=Name}) -> LocalName=local_name(Name), element(1,is_a(LocalName,dummy)). is_a(element,S) -> {element,S}; is_a(annotation,S) -> {annotation,S}; is_a(simpleType,S) -> {simpleType,S}; is_a(complexType,S) -> {complexType,S}; is_a(simpleContent,S) -> {simpleContent,S}; is_a(complexContent,S) -> {complexContent,S}; is_a(include,S) -> {include,S}; is_a(import,S) -> {import,S}; is_a(redefine,S) -> {redefine,S}; is_a(unique,S) -> {unique,S}; is_a(key,S) -> {key,S}; is_a(keyref,S) -> {keyref,S}; is_a(attribute,S) -> {attribute,S}; is_a(attributeGroup,S) -> {attributeGroup,S}; is_a(group,S) -> {group,S}; is_a(all,S) -> {all,S}; is_a(sequence,S) -> {sequence,S}; is_a(choice,S) -> {choice,S}; is_a(any,S) -> {any,S}; is_a(anyAttribute,S) -> {anyAttribute,S}; is_a(selector,S) -> {selector,S}; is_a(field,S) -> {field,S}; is_a(notation,S) -> {notation,S}; is_a(appinfo,S) -> {appinfo,S}; is_a(documentation,S) -> {documentation,S}; is_a(restriction,S) -> {restriction,S}; is_a(extension,S) -> {extension,S}; is_a(list,S) -> {list,S}; is_a(union,S) -> {union,S}; is_a(schema,S) -> {schema,S}; is_a(minExclusive,S) -> {minExclusive,S}; is_a(minInclusive,S) -> {minInclusive,S}; is_a(maxExclusive,S) -> {maxExclusive,S}; is_a(maxInclusive,S) -> {maxInclusive,S}; is_a(totalDigits,S) -> {totalDigits,S}; is_a(fractionDigits,S) -> {fractionDigits,S}; is_a(length,S) -> {length,S}; is_a(minLength,S) -> {minLength,S}; is_a(maxLength,S) -> {maxLength,S}; is_a(enumeration,S) -> {enumeration,S}; is_a(whiteSpace,S) -> {whiteSpace,S}; is_a(pattern,S) -> {pattern,S}; is_a(Name,S) when is_record(S,xsd_state) -> {Name,acc_errs(S,{[],?MODULE,{unknown_content,Name}})}; is_a(Name,_) -> exit({error,{internal_error,not_implemented,Name}}). %% namespace/2 -> [token()] %% token() -> {not,namespace_name()} | namespace_name() %% ((##any | ##other) | List of (anyURI | (##targetNamespace | ##local)) ) : ##any %% The result will be: %% NSList ::= ['##any'] | [{'not',[TNS]}] | NSURIs %% TNS ::= URI | absent %% NSURIs ::= (URI | absent) + %% URI ::= atomified URI-string wildcard_namespace(E,S) -> AttVal = get_attribute_value(namespace,E,"##any"), ListOfVals = namestring2namelist(AttVal), Pred = fun('##other') -> case S#xsd_state.targetNamespace of undefined -> {'not',[absent]}; TN -> {'not',TN} end; ('##targetNamespace') -> case S#xsd_state.targetNamespace of undefined -> absent; TN -> TN end; ('##local') -> absent;%%'##local'; %% any well-formed xml that %% is not qualified. (X) -> X end, [X||X <- map(Pred,ListOfVals),X=/=[]]. processor_contents(Any) -> case get_attribute_value(processContents,Any,strict) of V when is_list(V) -> list_to_atom(V); A -> A end. base_type(E) -> get_attribute_value(base,E,[]). base_type_type(Env) -> case member(simpleType,Env) of true -> simpleType; _ -> simple_or_complex_Type end. attribute_ref(A) -> get_attribute_value(ref,A,[]). particle_ref(El) -> get_attribute_value(ref,El,[]). attributeGroup_ref(El) -> get_attribute_value(ref,El,[]). get_value(El) -> get_attribute_value(value,El,undefined). get_attribute_value(Key,#xmlElement{attributes=Atts},Default) -> case keyNsearch(Key,#xmlAttribute.name,Atts,Default) of #xmlAttribute{value=V} -> V; _ -> Default end. %% qualify_NCName/2 returns a qualified name, QName, that has %% information of the name attribute and namespace of the XSD object. %% The object E has a name attribute with a NCName. The Namespace %% part of the QName is from the targetNamespace attribute of the %% schema or the empty list. qualify_NCName(E=#xmlElement{},S) -> case get_local_name(E) of [] -> no_name; LocalName -> Namespace = case S#xsd_state.targetNamespace of undefined -> []; %%?XSD_NAMESPACE; TNS -> TNS end, {atom_if_shortasciilist(LocalName),S#xsd_state.scope,Namespace} end. get_local_name(#xmlElement{attributes=Atts}) -> case keyNsearch(name,#xmlAttribute.name,Atts,[]) of #xmlAttribute{value=V} -> V; Default -> Default end. local_name(Name) when is_atom(Name) -> local_name(atom_to_list(Name)); local_name(Name) when is_list(Name) -> case splitwith(fun($:) -> false;(_)->true end,Name) of {_,":"++LocalName} -> list_to_atom(LocalName); _ -> list_to_atom(Name) end. %% transforms "a B c" to [a,'B',c] namestring2namelist(Str) -> split_by_whitespace(Str,[]). split_by_whitespace(Str,Acc) when is_list(Str),length(Str) > 0 -> F = fun($ ) -> false; (_) -> true end, {Str1,Rest} = splitwith(F,Str), split_by_whitespace(string:strip(Rest),[list_to_atom(Str1)|Acc]); split_by_whitespace(_,Acc) -> reverse(Acc). %% get_QName(Name,S) where Name is a QName in string format, or where %% a QName is expected according to schema specification. If the name %% is unqualified it is qualified with the targetNamespace of the schema %% or with the empty list. get_QName(Name,NS,S) when is_atom(Name) -> get_QName(atom_to_list(Name),NS,S); get_QName(Name,NS,#xsd_state{scope=Scope}) -> qualified_name(Name,NS,NS#xmlNamespace.default,Scope). qualified_name(Name,NS,Default,Scope) -> case splitwith(fun($:) -> false;(_)->true end,Name) of {GlobalName,":"++LocalName} -> {atom_if_shortasciilist(LocalName),Scope, namespace(GlobalName,NS,Default)}; _ -> {atom_if_shortasciilist(Name),Scope,Default} end. atom_if_shortasciilist(N) when is_list(N) -> case catch list_to_atom(N) of {'EXIT',_Reason} -> %% Reason may be system_limit if N is very long, it may be %% badarg ifN is a list of UTF characters. N; AN -> AN end; atom_if_shortasciilist(N) -> N. namespace("xml",_,_) -> 'http://www.w3.org/XML/1998/namespace'; namespace(Prefix,NS,Default) -> case key1search(Prefix,NS#xmlNamespace.nodes,Default) of {Prefix,Namespace} -> Namespace; Namespace -> Namespace end. %% mk_EII_QName/2 %% makes a name with qualified info out of an Element Information Item %% A) If name is qualified get namespace matching prefix. %% B) If not qualified search parents for a namespace: %% 1) use default namespace if defined, else. %% 2) if a parent is qualified use that namespace or %% 3) no namespace is applied mk_EII_QName(Name,#xmlElement{name=Me,namespace=NS,parents=P},S) when is_list(Name) -> mk_EII_QName(list_to_atom(Name), #xmlElement{name=Me,namespace=NS,parents=P},S); mk_EII_QName(Name,#xmlElement{name=Me,namespace=NS,parents=P},S) -> Scope = S#xsd_state.scope, NameStr = atom_to_list(Name), case string:tokens(NameStr,":") of ["xmlns",PrefixDef] -> %% special case {'xmlns',Scope,namespace(PrefixDef,NS,[])}; [Prefix,LocalName] -> %% A {list_to_atom(LocalName),Scope,namespace(Prefix,NS,[])}; [_LocalName] -> %% B {Name,Scope,mk_EII_namespace([{Me,0}|P],NS,S)} end. mk_EII_namespace([],#xmlNamespace{default=DefaultNS},_S) -> DefaultNS; %%mk_EII_namespace([{PName,_}|GrandPs],NS=#xmlNamespace{default=[]},S) -> mk_EII_namespace([{PName,_}|GrandPs],NS,S) -> NameStr = atom_to_list(PName), case string:tokens(NameStr,":") of [Prefix,_LocalName] -> namespace(Prefix,NS,[]); [_LocalName] -> mk_EII_namespace(GrandPs,NS,S) end; mk_EII_namespace(_,NS,_S) -> NS#xmlNamespace.default. mk_EII_Att_QName(AttName,XMLEl,S) when is_list(AttName) -> mk_EII_Att_QName(list_to_atom(AttName),XMLEl,S); mk_EII_Att_QName(AttName,XMLEl,S) -> NameStr = atom_to_list(AttName), {member($:,NameStr),mk_EII_QName(AttName,XMLEl,S)}. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% table access functions %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% create_tables(S=#xsd_state{table=undefined}) -> Tid=ets:new(xmerl_schema_tab,[]), S#xsd_state{table=Tid}; create_tables(S) -> S. delete_table(#xsd_state{table=Tab}) -> catch ets:delete(Tab). %% @hidden print_table(#xsd_state{table=Tab}) -> case catch ets:tab2list(Tab) of Res when is_list(Res) -> Res; {'EXIT',Reason} -> {error,{?MODULE,[],Reason}} end; print_table(_) -> ok. %save_object({name,_},S) -> % %% already saved. % S; %% only simpleType asn complexType are temporary saved with %% three-tuple key. They are loaded and merged in redefine/2. save_object({Kind,Obj},S=#xsd_state{redefine=true}) when Kind == simpleType; Kind == complexType -> save_in_table({Kind,redefine,object_name(Obj)},Obj,S); save_object({Kind,Obj},S=#xsd_state{redefine=true}) when Kind == group; Kind == attributeGroup -> save_in_table({Kind,object_name(Obj)},Obj,S); save_object({Kind,Obj},S) when Kind == simpleType; Kind == complexType -> save_unique_type({Kind,object_name(Obj)},Obj,S); save_object({Kind,Obj},S) when Kind == attributeGroup; Kind == group -> save_uniquely({Kind,object_name(Obj)},Obj,S); save_object({Kind,Obj},S) -> save_in_table({Kind,object_name(Obj)},Obj,S). save_unique_type(Key={_,Name},Obj,S) -> case resolve({simple_or_complex_Type,Name},S) of {#schema_simple_type{},_} -> acc_errs(S,{[],?MODULE,{type_not_uniquely_defined_in_schema,Name}}); {#schema_complex_type{},_} -> acc_errs(S,{[],?MODULE,{type_not_uniquely_defined_in_schema,Name}}); _ -> save_in_table(Key,Obj,S) end. save_uniquely(Key,Obj,S) -> case load_object(Key,S) of {[],_} -> save_in_table(Key,Obj,S); _ -> acc_errs(S,{[],?MODULE,{not_uniquely_defined_in_schema,Key}}) end. save_schema_element(CM,S=#xsd_state{elementFormDefault = EFD, attributeFormDefault = AFD, targetNamespace = TN, finalDefault = FD, blockDefault = BD}) -> ElementList = [X||X = {element,_} <- CM], %% OtherGlobalEls = other_global_elements(S,ElementList), Schema = get_schema_cm(S#xsd_state.table,TN), Schema2 = case Schema == #schema{} of true -> Schema#schema{elementFormDefault = EFD, attributeFormDefault = AFD, targetNamespace = TN, blockDefault = BD, finalDefault = FD, content = ElementList}; _ -> Content = Schema#schema.content, Schema#schema{content=[X||X<-Content,member(X,ElementList)==false]++ElementList} end, TN2 = case TN of undefined -> []; _ -> TN end, _ = save_in_table({schema,TN2},Schema2,S), save_to_file(S). %% other_global_elements(S,ElementList) -> %% Schema = get_schema_cm(S#xsd_state.table,S#xsd_state.targetNamespace), %% [X||X<-Schema#schema.content, %% member(X,ElementList) == false]. %% other_global_elements(#xsd_state{schema_name=SchemaName, %% table = Tab, %% global_element_source=GES},ElementList) -> %% case [X||{Y,X}<-GES,Y==SchemaName] of %% [] -> %% []; %% L -> %% All other schemas included in redefine %% NameList = [X||{element,{X,_}}<-ElementList], %% Contents = %% flatten([X||#schema{content=X}<-[get_schema_cm(Tab,Y)||Y<-L]]), %% SortFun = %% fun({_,{A,_}},{_,{B,_}}) when A =< B -> %% true; %% (_,_) -> false end, %% [X||X={element,{Y,_}}<-lists:sort(SortFun,Contents),member(Y,NameList)==false] %% end. save_to_file(S=#xsd_state{tab2file=true},FileName) -> save_to_file(S#xsd_state{tab2file=FileName}); save_to_file(_,_) -> ok. save_to_file(S=#xsd_state{tab2file=TF}) -> case TF of true -> {ok,IO}=file:open(filename:rootname(S#xsd_state.schema_name)++".tab", [write]), io:format(IO,"~p~n",[catch ets:tab2list(S#xsd_state.table)]), ok = file:close(IO); false -> ok; IOFile -> {ok,IO}=file:open(IOFile,[write]), io:format(IO,"~p~n",[catch ets:tab2list(S#xsd_state.table)]), ok = file:close(IO) end. save_merged_type(Type=#schema_simple_type{},S) -> resave_object({simpleType,Type},S); save_merged_type(Type=#schema_complex_type{},S) -> resave_object({complexType,Type},S). resave_object({Kind,Obj},S) -> save_in_table({Kind,object_name(Obj)},Obj,S). save_in_table(Name,ElDef,S=#xsd_state{table=Tab}) -> catch ets:insert(Tab,{Name,ElDef}), S. save_idc(key,IDConstr,S) -> save_key(IDConstr,S); save_idc(keyref,IDConstr,S) -> save_keyref(IDConstr,S); save_idc(unique,IDConstr,S) -> save_unique(IDConstr,S). save_key(Key,S) -> _ = save_object({key,Key},S), S. save_keyref(KeyRef=#id_constraint{category=keyref},S) -> S1 = add_keyref(KeyRef,S), _ = save_object({keyref,KeyRef},S1), S1; save_keyref(_,S) -> S. save_unique(Unique,S) -> _ = save_object({unique,Unique},S), S. save_substitutionGroup([],S) -> S; save_substitutionGroup([{Head,Members}|SGs],S) -> %% save {head,[members]} _ = save_in_table({substitutionGroup,Head},Members,S), %% save {member,head}, an element can only be a member in one %% substitutionGroup lists:foreach(fun(X)->save_in_table({substitutionGroup_member,X},Head,S) end,Members), save_substitutionGroup(SGs,S). substitutionGroup_member(ElName,S) -> case load_object({substitutionGroup_member,ElName},S) of {[],_} -> false; {Res,_} -> Res end. %% substitutionGroup_head(Head,S) -> %% case load_object({substitutionGroup,Head},S) of %% {[],_} -> %% false; %% {Res,_} -> %% Res %% end. add_keyref(#id_constraint{name=Name,refer=Refer}, S=#xsd_state{keyrefs=KeyRefs}) -> S#xsd_state{keyrefs=add_once({keyref,Name,Refer},KeyRefs)}. load_redefine_object({Kind,Name},S) -> load_object({Kind,redefine,Name},S). load_object({element,{QN,Occ={Min,_}}},S) when is_integer(Min) -> case load_object({element,QN},S) of {SE=#schema_element{},S1} -> {SE#schema_element{occurance=Occ},S1}; Other -> Other end; load_object({group,{QN,_Occ={Min,_}}},S) when is_integer(Min) -> load_object({group,QN},S); load_object(Key,S=#xsd_state{table=Tab}) -> case ets:lookup(Tab,Key) of [{Key,Value}] -> {Value,S}; [] -> case ets:lookup(Tab,global_def(Key)) of [{_,Value}] -> {Value,global_scope(S)}; Other -> {Other,S} end; Other -> {Other,S} end. load_keyref(Name,S) -> case load_object({keyref,Name},S) of {KeyRef=#id_constraint{},_} -> KeyRef; _ -> [] end. load_key(Name,S) -> case load_object({key,Name},S) of {Key=#id_constraint{},_} -> Key; _ -> case load_object({unique,Name},S) of {Key=#id_constraint{},_} -> Key; _ -> [] end end. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% END table access functions %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% save_ID(ID,S) -> case member(ID,S#xsd_state.'IDs') of true -> acc_errs(S,{'ID_name_not_unique',ID}); _ -> S#xsd_state{'IDs'=[ID|S#xsd_state.'IDs']} end. check_and_save_ID(ID,S) -> case xmerl_xsd_type:check_simpleType('ID',ID,S) of {ok,ID} -> save_ID(ID,S); _ -> acc_errs(S,{illegal_ID_value,ID}) end. insert_substitutionGroup(#schema_element{substitutionGroup=undefined},S) -> S; insert_substitutionGroup(#schema_element{name=Name, substitutionGroup=SG}, S=#xsd_state{substitutionGroups=SGregister}) -> case key1search(SG,SGregister,[]) of {_,SGList} -> S#xsd_state{substitutionGroups= keyreplace(SG,1,SGregister,{SG,[Name|SGList]})}; _ -> S#xsd_state{substitutionGroups=[{SG,[Name]}|SGregister]} end. global_scope(S=#xsd_state{}) -> S#xsd_state{scope=[]}. global_def({Kind,{Local,_,NS}}) when Kind==simpleType; Kind==complexType; Kind==group; Kind==attributeGroup; Kind==element; Kind==attribute; Kind==substitutionGroup;Kind==substitutionGroup_member-> {Kind,{Local,[],NS}}; global_def(D) -> D. get_schema_cm(Tab,undefined) -> get_schema_cm(Tab,[]); get_schema_cm(Tab,[]) -> get_schema_cm1(Tab,[]); get_schema_cm(Tab,Namespace) -> NoNamespaceC=get_no_namespace_content(Tab), Schema = get_schema_cm1(Tab,Namespace), NSC = Schema#schema.content, Schema#schema{content=NSC++[X||X<-NoNamespaceC,member(X,NSC)==false]}. get_schema_cm1(Tab,Namespace) -> case catch ets:lookup(Tab,{schema,Namespace}) of [{_,H}] -> H; _ -> #schema{} end. get_no_namespace_content(Tab) -> case get_schema_cm1(Tab,[]) of #schema{content=C} -> C; _ -> [] end. %% is_simple_type(Type,S) when is_atom(Type) -> %% is_simple_type(atom_to_list(Type),S); is_simple_type({LName,Scope,NS},S) when is_atom(LName) -> is_simple_type({atom_to_list(LName),Scope,NS},S); is_simple_type(QName={_,_,_},S) -> case is_builtin_simple_type(QName) of true -> true; _ -> is_derived_simple_type(QName,S) end. is_derived_simple_type(QName,S) -> %% case resolve({simple_or_complex_Type,QName},S) of case resolve({simpleType,QName},S) of {#schema_simple_type{},_} -> true; _ -> false end. object_name(#schema_element{name=N}) -> N; object_name(#schema_simple_type{name=N}) -> N; object_name(#schema_complex_type{name=N}) -> N; object_name(#schema_attribute{name=N}) -> N; object_name(#schema_attribute_group{name=N}) -> N; object_name(#schema_group{name=N}) -> N; object_name(#id_constraint{name=N}) -> N. is_whitespace(#xmlText{value=V}) -> case [X|| X <- V, whitespace(X) == false] of [] -> true; _ -> false end; is_whitespace(_) -> false. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% fetch %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% fetch(URI,S) -> Split = filename:split(URI), Filename = fun([])->[];(X)->lists:last(X) end (Split), Fullname = case Split of %% how about Windows systems? ["file:"|Name]-> %% absolute path, see RFC2396 sect 3 %% file:/dtd_name filename:join(["/"|Name]); ["/"|Rest] when Rest /= [] -> %% absolute path name URI; ["http:"|_Rest] -> {http,URI}; [] -> %% empty systemliteral []; _ -> case S#xsd_state.external_xsd_base of true -> filename:join(S#xsd_state.xsd_base, URI); false -> filename:join(S#xsd_state.xsd_base, filename:basename(URI)) end end, Path = path_locate(S#xsd_state.fetch_path, Filename, Fullname), ?dbg("fetch(~p) -> {file, ~p}.~n", [URI, Path]), {ok, Path, S}. path_locate(_, _, {http,_}=URI) -> URI; path_locate(_, _, []) -> []; path_locate([Dir|Dirs], FN, FullName) -> F = filename:join(Dir, FN), case file:read_file_info(F) of {ok, #file_info{type = regular}} -> {file,F}; _ -> path_locate(Dirs, FN, FullName) end; path_locate([], _FN, FullName) -> {file,FullName}. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% return %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% return_error(Errs) -> {error,reverse(Errs)}. return_schema_error(Errs) -> {error,{schema_failure,reverse(Errs)}}. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% general helper functions %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% if_atom_to_list(A) when is_atom(A) -> atom_to_list(A); if_atom_to_list(L) -> L. if_list_to_atom(L) when is_list(L) -> list_to_atom(L); if_list_to_atom(A) -> A. list_members(Members,CompleteList) -> case [X||X<-Members,member(X,CompleteList)==false] of [] -> true; L -> {error,L} end. whitespace(X) when ?whitespace(X) -> true; whitespace(_) -> false. key1search(Key,List,Default) -> case keysearch(Key,1,List) of {value,V} -> V; _ -> Default end. keyNsearch(Key,N,L,Default) -> case keysearch(Key,N,L) of {value,V} -> V; _ -> Default end. key_replace_or_insert(Key,N,List,Tuple) -> case keyreplace(Key,N,List,Tuple) of List -> [Tuple|List]; NewList -> NewList end. keysearch_delete(Key,N,List,Default) -> case keysearch(Key,N,List) of {value,Res} -> {Res,keydelete(Key,N,List)}; _ -> {Default,List} end. search_delete_all_el(ElName,ElList,S) -> case search_delete_all_el2(ElName,ElList,[]) of false -> case substitutionGroup_member(ElName,S) of false -> false; Head -> case search_delete_all_el(Head,ElList,S) of {_,Rest} -> {Name,_,NS} = ElName, {{element,{Name,[],NS}},Rest}; _ -> false end end; Res -> Res end. search_delete_all_el2(_ElName,[],_NoMatch) -> false; %% name must match defined (local scope) and referenced (global scope) %% elements. search_delete_all_el2({Name,Scope,NS}, [El={element,{{Name,ScopeCM,NS},_}}|Rest], NoMatch) when Scope == ScopeCM; ScopeCM == [] -> {El,reverse(NoMatch)++Rest}; search_delete_all_el2(ElName,[H|T],NoMatch) -> search_delete_all_el2(ElName,T,[H|NoMatch]). %% Search attribute should not consider the scope. All attributes %% allowed in this scope are in SchemaAttList. search_attribute(true,{Name,_,Namespace},SchemaAtts) -> case [A||A={_,{N,_,NS}}<-SchemaAtts,N==Name,NS==Namespace] of [] -> {undefined,SchemaAtts}; [Attr] -> {Attr,lists:delete(Attr,SchemaAtts)} end; search_attribute(_,{Name,_,_},SchemaAtts) -> case [A||A={_,{N,_,_}}<-SchemaAtts,N==Name] of [] -> {undefined,SchemaAtts}; [Attr] -> {Attr,lists:delete(Attr,SchemaAtts)} end. error_msg(Format,Args) -> error_logger:error_msg(Format,Args). add_once(El,L) -> case member(El,L) of true -> L; _ -> [El|L] end. add_key_once(Key,N,El,L) -> case keymember(Key,N,L) of true -> L; _ -> [El|L] end. %% shema_el_pathname({Type,_},Env) -> %% mk_path(reverse([Type|Env])). %% xml_el_pathname(#xmlElement{name=Name,parents=Parents,pos=Pos}) -> %% {element,mk_xml_path(Parents,Name,Pos)}; %% xml_el_pathname(#xmlAttribute{name=Name,parents=Parents,pos=Pos}) -> %% {attribute,mk_xml_path(Parents,Name,Pos)}; %% xml_el_pathname(#xmlText{parents=Parents,pos=Pos}) -> %% {text,mk_xml_path(Parents,text,Pos)}. %% mk_path([]) -> %% []; %% mk_path(L) when is_list(L) -> %% "/"++filename:join(L). %% mk_xml_path(Parents,Type,Pos) -> %% %% ?dbg("mk_xml_path: Parents = ~p~n",[Parents]), %% {filename:join([[io_lib:format("/~w(~w)",[X,Y])||{X,Y}<-Parents],Type]),Pos}. %% @spec format_error(Errors) -> Result %% Errors = tuple() | [tuple()] %% Result = string() | [string()] %% @doc Formats error descriptions to human readable strings. format_error(L) when is_list(L) -> [format_error(X)||X<-L]; format_error({unexpected_rest,UR}) -> io_lib:format("XML: The following content of an element didn't validate by the provided schema, ~n~p.",[UR]); format_error({unvalidated_rest,UR}) -> io_lib:format("XML: The following content of an element didn't validate by the provided schema, ~n~p.",[UR]); format_error({no_schemas_provided}) -> "Schema: Validator found no schema. A schema must be provided for validation."; format_error({internal_error,Reason}) -> io_lib:format("An error occured that was unforeseen, due to ~p.",[Reason]); format_error({internal_error,Reason,Info}) -> io_lib:format("An error occured that was unforeseen, due to ~p: ~p.",[Reason,Info]); format_error({internal_error,Function,Info1,Info2}) -> io_lib:format("An internal error occured in function ~p with args: ~p,~p.",[Function,Info1,Info2]); format_error({illegal_content,Reason,Kind}) -> io_lib:format("Schema: The schema violates the content model allowed for schemas.~nReason: ~p,~nkind of schema element: ~p.",[Reason,Kind]); format_error({no_match,Kind}) -> io_lib:format("Schema: The schema violates the content model allowed for schemas.~nKind of schema element: ~p.",[Kind]); format_error({bad_match,S4SC,CM}) -> io_lib:format("Schema: The schema missed mandatory elements ~p in ~p.",[S4SC,CM]); format_error({unmatched_mandatory_object,SequenceEl1,SequenceEl2}) -> io_lib:format("Schema: The schema should have had an ~p object after the ~p, but it was missing.",[SequenceEl2,SequenceEl1]); format_error({parsing_external_schema_failed,File,Reason}) -> io_lib:format("Schema: Parsing the referenced external schema ~p, failed due to ~p.",[File,Reason]); format_error({fetch_fun_failed,Other}) -> io_lib:format("Schema: Fetching this kind of external schema is not supported ~p.", [Other]); format_error({element_not_in_schema,[EIIName,_ElQName,_CM]}) -> io_lib:format("XML: The XML element ~p are not present in the schema.", [EIIName]); format_error({missing_mandatory_element,CMEl}) -> io_lib:format("XML: The XML file missed mandatory element(s) ~p defined in schema.",[CMEl]); format_error({empty_content_not_allowed,C}) -> io_lib:format("XML: The XML file missed mandatory element(s): ~p defined in schema.",[C]); format_error({element_not_suitable_with_schema,ElName,_S}) -> io_lib:format("XML: The XML element: ~p violates the schema, probably to many of same element.",[ElName]); format_error({element_not_suitable_with_schema,ElName,CMName,_CMEl,_S}) -> io_lib:format("XML: The XML element: ~p violates the schema. Schema expected element ~p.",[ElName,CMName]); format_error({no_element_expected_in_group,XML}) -> io_lib:format("XML: The XML element(s) ~p violates the schema. No element was expected.",[XML]); format_error({element_bad_match,E,Any,_Env}) -> io_lib:format("XML: XML element ~p didn't match into the namespace of schema type any ~p.",[E,Any]); format_error({match_failure,_XML,_CM,_S}) -> "XML: A combination of XML element(s) and schema definitions that is not known has occured. The implementation doesn't support this structure."; format_error({cannot_contain_text,_XMLTxt,CMEl}) -> io_lib:format("XML: The schema structure: ~p doesn't allow text",[CMEl]); format_error({missing_mandatory_elements,MandatoryEls}) -> io_lib:format("XML: A schema sequence has mandatory elements ~p, that were unmatched.",[MandatoryEls]); format_error({choice_missmatch,T,Els}) -> io_lib:format("XML: A schema choice structure with the alternatives: ~p doesn't allow the text: ~p.",[Els,T]); format_error({no_element_matching_choice,XML}) -> io_lib:format("XML: The choice at location: ~p had no alternative that matched the XML structure(s): ~p.",[error_path(XML,undefined),XML]); format_error({all_missmatch,T,CM}) -> io_lib:format("XML: The schema expected one of: ~p, but the XML content was text: ~p at the location: ~p.",[CM,T,error_path(T,undefined)]); format_error({element_not_in_all,ElName,E,_CM}) -> io_lib:format("XML: The element ~p at location ~p in the XML file was not allowed according to the schema.",[ElName,error_path(E,undefined)]); format_error({missing_mandatory_elements_in_all,MandatoryEls}) -> io_lib:format("XML: The schema elements ~p were missed in the XML file.",[MandatoryEls]); format_error({failed_validating,E,Any}) -> io_lib:format("XML: The element ~p at location ~p failed validation. It should hav been matched by an any schema element ~p",[E#xmlElement.name,error_path(E,undefined),Any]); format_error({schemaLocation_list_failure,Paths}) -> io_lib:format("XML: schemaLocation values consists of one or more pairs of URI references, separated by white space. The first is a namespace name the second a reference to a schema: ~p.",[Paths]); format_error({element_content_not_nil,XMLEl}) -> io_lib:format("XML: The element ~p at position ~p has content of text/elements despite the nillable attribute was true.",[XMLEl#xmlElement.name,error_path(XMLEl,undefined)]); format_error({attribute_in_simpleType,El,Att}) -> io_lib:format("XML: The element ~p at location ~p must not have attributes like: ~p since it according to the schema has simpleType type.",[El#xmlElement.name,error_path(El,undefined),Att]); format_error({required_attribute_missed,El,Name}) -> io_lib:format("XML: The schema required an attribute ~p in element at location ~p that was missing.",[Name,error_path(El,undefined)]); format_error({default_and_fixed_attributes_mutual_exclusive, Name,Default,Fix}) -> io_lib:format("Schema: It is an error in the schema to assign values for both default and fix for an attribute. Attribute: ~p, default: ~p, fix: ~p.",[Name,Default,Fix]); format_error({schema_error,unexpected_object,_SA,_Err}) -> "Schema: An unforeseen error case occured, maybee due to an unimplemented feature."; format_error({attribute_not_defined_in_schema,Name}) -> io_lib:format("XML: The attribute ~p is not defined in the provided schema.",[Name]); format_error({disallowed_namespace,Namespace,NS,Name}) -> io_lib:format("XML: The attribute ~p is not valid because the namespace ~p is forbidden by ~p",[Name,NS,Namespace]); format_error({cirkular_attributeGroup_reference,Name}) -> io_lib:format("Schema: Cirkular references to attribute groups are forbidden. One was detected including ~p.",[Name]); format_error({could_not_resolve_type,ST}) -> io_lib:format("Schema: The simpleType ~p could not be found among the types defined by the provided schema.",[ST]); format_error({could_not_check_value_for_type,Type}) -> io_lib:format("XML: Checking value for type ~p is not implemented.",[Type]); format_error({unknown_simpleType,BT}) -> io_lib:format("Schema: The simpleType ~p could not be found among the types defined by the provided schema",[BT]); format_error({abstract_element_instance,ElName}) -> io_lib:format("XML: Elements defined as abstract in the schema must not be instantiated in XML: ~p.",[ElName]); format_error({qualified_name_required,LocalName}) -> io_lib:format("XML: Element name ~p in XML instance is not qualified, though the schema requires that.",[LocalName]); format_error({unqualified_name_required,QualifiedName}) -> io_lib:format("XML: Element name ~p in XML instance must be unqualified, according to schema.",[QualifiedName]); format_error({illegal_key_sequence_value,Err}) -> io_lib:format("XML: The 'key-sequence', (se XML-spec 3.11.4), must be a node with at most one member: ~p",[Err]); format_error({qualified_node_set_not_correct_for_key,_Err}) -> "Schema: The 'target node set' and 'qualified node set' (se XML-spec 3.11.4.2.1) must be equal."; format_error({key_value_not_unique,KS}) -> io_lib:format("Schema: Key values must be unique within the schema. This is not ~p,",[KS]); format_error({keyref_missed_matching_key,Refer}) -> io_lib:format("Schema: This keyref had no matching key ~p.",[Refer]); format_error({keyref_unexpected_object,_Other}) -> "Schema: An unforeseen error case occured, unknown failure cause."; format_error({cardinality_of_fields_not_equal,KR,K}) -> io_lib:format("Schema: keyref and the corresponding key must have same cardinality of their fields. Missmatch in this case keyref: ~p, key: ~p.",[KR,K]); format_error({could_not_load_keyref,Name}) -> io_lib:format("Schema: The schema didn't define a keyref with the name ~p.",[Name]); format_error({reference_undeclared,Kind,Ref}) -> io_lib:format("Schema: The schema didn't define an ~p with the name ~p.",[Kind,Ref]); format_error({cyclic_substitutionGroup,SGs}) -> io_lib:format("Schema: cyclic substitutionGroup was detected, substitutionGroup structure is ~p.",[SGs]); format_error({substitutionGroup_error,Head,SG}) -> io_lib:format("Schema: Either of substitutionGroup members ~p or ~p is not defined in the provided schema.",[Head,SG]); format_error({cyclic_definition,CA}) -> io_lib:format("Schema: A forbidden cicular definition was detected ~p.",[CA]); format_error({type_of_element_not_derived,MemT,HeadT}) -> io_lib:format("Schema: Type in substitutionGroup members should be simpleType or complexType. In this case ~p and ~p were found.",[MemT, HeadT]); format_error({derivation_blocked,BlockTag,Derivation}) -> io_lib:format("Derivation by ~p is blocked by the blocking tag ~p.",[Derivation,BlockTag]); format_error({names_not_equal,QName1,QName2}) -> io_lib:format("The type ~p seems to be derived from another type than the base type ~p",[QName2,QName1]); %% format_error({miss_match_base_types,QName1,QName2}) -> %% io_lib:format("Types and/or names of base type ~p and derived type ~p doesn't fit.",[QName1,QName2]); format_error({illegal_content_in_extension,Ext}) -> io_lib:format("The extension content ~p didn't match the content model of the provided schema.",[Ext]); format_error({SeqCho,expected,Other,found}) when SeqCho == sequence;SeqCho == choice -> io_lib:format("Schema: The restriction content ~p didn't match the content model of the provided schema, ~p was expected.",[SeqCho,Other]); format_error({does_not_support,F,in_restriction}) -> io_lib:format("Schema: The structure ~p is not supported in the implementation.",[F]); format_error({illegal_content_simple_type,CM,TypeName}) -> io_lib:format("Schema: ~p content is not allowed in a simpleType, as in ~p.",[CM,TypeName]); format_error({illegal_in_restriction_of_simpleType,X}) -> io_lib:format("Schema: The ~p content is illegal in a simpleType.",[X]); format_error({element,Name,not_present_in_restriction}) -> io_lib:format("Schema: In a restriction all element names of the restriction must be one of the elements of the base type. ~p is not.",[Name]); format_error({invalid_derivation,EA,BaseAtts}) -> io_lib:format("Schema: An anyAttribute ~p in a restricted derived type must be present among the base type attributes ~p.",[EA,BaseAtts]); format_error({wildcard_namespace,NS,not_subset_of_base_namespace,BaseNS}) -> io_lib:format("Schema: See XML spec. section 3.10.6. This wildcard namespace ~p is not allowed by the base namespace restrictions ~p.",[NS,BaseNS]); format_error({wildcard_namespace_union_not_expressible,NS1,NS2}) -> io_lib:format("Schema: See XML spec. section 3.10.6. The union of namespaces ~p and ~p is not expressible.",[NS1,NS2]); format_error({wildcard_namespace_intersection_not_expressible,NS1,NS2}) -> io_lib:format("Schema: See XML spec. section 3.10.6. The intersection of namespaces ~p and ~p is not expressible.",[NS1,NS2]); format_error({circular_reference_of_type,TName}) -> io_lib:format("Schema: An illicit circular reference involving simple/complex type ~p has been detected.",[TName]); format_error({type_not_uniquely_defined_in_schema,Name}) -> io_lib:format("Schema: See XML spec. section 3.4.1. Type names whether simple or complex must be unique within the schema. ~p is not.",[Name]); format_error({not_uniquely_defined_in_schema,Key}) -> io_lib:format("Schema: All schema objects of the same kind identified by name must be unique within the schema. ~p is not.",[Key]); format_error({illegal_ID_value,ID}) -> io_lib:format("The ID value ~p is not allowed as an ID value.",[ID]); format_error({incomplete_file,_FileName,_Other}) -> "Schema: The file containing a schema state must be produced by xmerl_xsd:state2file/[1,2]."; format_error({unexpected_content_in_any,A}) -> io_lib:format("Schema: The any type is considered to have no content besides annotation. ~p was found.",[A]); format_error({erroneous_content_in_identity_constraint,IDC,Err}) -> io_lib:format("Schema: An ~p identity constraint must have one selector and one or more field in content. This case ~p",[IDC,Err]); format_error({missing_xpath_attribute,IDCContent}) -> io_lib:format("Schema: A ~p in a identity constraint must have a xpath attribute.",[IDCContent]); format_error({content_in_anyAttribute,Err}) -> io_lib:format("Schema: ~p is not allowed in anyAttribute. Content cannot be anything else than annotation.",[Err]); format_error({content_in_simpleContent,Err}) -> io_lib:format("Schema: Content of simpleContent can only be an optional annotation and one of restriction or extension. In this case ~p.",[Err]); format_error({complexContent_content_failure,Err}) -> io_lib:format("Schema: Besides an optional annotation complexContent should have one of restriction or extension. In this case ~p.",[Err]); format_error({union_member_type_not_simpleType,IllegalType}) -> io_lib:format("Schema: ~p is not allowed in a union. Content must be any nymber of simpleType.",[IllegalType]); format_error({missing_base_type,restriction,_Other}) -> "Schema: A restriction must have a base type, either assigned by the 'base' attribute or as a simpleType defined in content."; format_error({content_failure_expected_restriction_or_extension,Kind,_}) -> io_lib:format("Schema: A ~p had no restriction or extension in content.",[Kind]); format_error({content_failure_only_one_restriction_or_extension_allowed,Kind,_}) -> io_lib:format("Schema: A ~p can only have one of restriction or extension in content.",[Kind]); format_error({mandatory_component_missing,S4SCMRest,Kind}) -> io_lib:format("Schema: After matching a ~p the schema should have had content ~p.",[Kind,S4SCMRest]); format_error(Err) -> io_lib:format("~p~n",[Err]). %% format_error(ErrMsg,E,SchemaE,Env) -> %% ?debug("format_error: ~p~n",[ErrMsg]), %% {ErrMsg,format_error2(E,SchemaE,Env)}. %% format_error2(E,SchemaE,Env) -> %% {shema_el_pathname(SchemaE,Env), %% xml_el_pathname(E)}. default_namespace_by_convention() -> [{xml,'http://www.w3.org/XML/1998/namespace'}].